Ok out of boredom i decided to write something up hoping to help fellow rogue communities. They're up for debating and updating so feel free to comment and add your thought!
(Link for other raid SSC/TK/BT/Hyjal is in the following post)

Karazhan
Attumen the Huntsman
-Simple fight, just dps race. Make sure you aint overagro.
-Cloak of Shadow can remove his curse. Do so whenever the curse is at you.
-Attumen not effect by bleeding. (Cant rupture)

Moroes
-Get adds fast. In case you dont have enough tank, pop evasion, with one assigned healer you can offtank one of them for certain period.
-CloS cant remove garrote so ask healer to heal you.
-Moroe not effect by bleeding. (Cant rupture)

Maiden
-Ask mage to Dampen Magic you, it help a lot.
-Ask priest for lightwell so you can get out and heal instantly no need to bandage.
-Get away from maintank if you see his hp is too low. (To prevent chain hits)
-CloS whenever possible to mitegrate damage.
-You can do best dps here if there is healer to heal you. (Chain heal from shammy work like wonder)

Opera:Big Bad Wolf
-Prepare to run if you're red riding hood!
-You can sprint during the red riding hood.
-You can vanish out of the red riding hood. (confirm?)
-Can be rupture/poison.

Opera:Romulo Julianne
-Main job is to interupt juliane healing. (Eternal ...)
-Can be rupture/poison. so wound poison help in case misinterupt her heal.

Opera:Crone
-Nothing in particular but a dps race.
-Watch your thread, just dont overagro. It's simple fight.

Curator
-Make sure tanker tank him not too far from range so you can run to add easily.
-Save sprint for the last add before evocation (he will evocation,2x damage, when he's low mana) so you can get back to curator faster.
-Immune to bleeding/poison. (No rupture here)
-Get add fast but dont blow your cooldown on it. Save em when curator evocation.
-CloS whenever possible to mitegrate some damages from add.
-If your guild need arcane absorber, rogue is a perfect class. But it isnt necessary.

Shade of Aran
-Make sure you kick Frost Bolt/Fire Bolt all the time kick is availiable. (No need to kick arcane since aran waste mana already when start casting arcane)
-Deadly poison, rupture on him all the time to maximize damage.
-CloS can remove slow debuff during arcane explosion.
-Sprint can remove slow debuff as well.
-Dont move or turn during flamewreath!, get in melee spot all the time to prevent unnecessary moving.
-You wont get hit by blizzard.
-Save CloS to use when Aran targetting you, or when you figure out that water elemental shooting at you.
-Frost protection potion help during water elemental phase.
-Use pots/HS immediately after Aran pyroblast. (If you have only one interuptor he will mostly go oom and do pyroblast)

Illhoof
-Kill demon chain fast (Use "/target demon chain "macro)
-Apply wound poison 5 stacks before he sacrifice help loads.
-If you're combat, your bladefurry can help killing add around illhoof fast.
-CloS out of fire debuff from big elite imp if you get it. (But most likely not)
-Stack rupture on him all the time too since he's not immune to bleeding.

Netherspite
-You can take green beam all phase or even blue beam. (Depend on raid leader to assign you or not)
-If you're beam taker, Dont use CloS or you cant take beam and get beam debuff.
-CloS help during banish phase/portal phase. Use it whenever possible in portal phase. Use it when u're about to get him by netherbreath during banish phase. (If you stand at his front you will get hit)
-You can attack during banish phase. BUT dont attack him at his front, or you will get cleaves and die in a second. Some says dont attack at all in banish phase for safe side. Up to you.

Prince
-Nothing but dps race.
-Keep rupture/deadly at him all the time to max dps.
-If you get emfeeble (1hp) run back to the group.
-CloS can use to prevent shadow nova damage/knockback.
-If your CloS is cooldown, and prince is casting shadownova, face your back on the wall so you will not knockback too far.
-Use sprint as soon as u get knockback by shadownova to get urself in spot for maximum dps as soon as possible.
-Use evasion in last phase if you're getting hit by those flying axes.
-CloS can prevent those fire AoE from fire elementals, but dont risk ^^.

Nightbane
-Dps him at his side.
-Dont ever go near his front or you will get hit by fire AoE.
-Dont ever go near his tail either or you will get tail sweep.
-Move out from Charing Earth fire AoE.
-CloS can remove those fire debuff/dot if you get it.
-Help party dpsing skeletons / stun during flying phase.
-You can bladefurry all skeletons but be sure that you have evasion ready to blow. (or healer ready to heal you)
-Stop dpsing 10sec before he land, vanish if you have to prevent agroing nightbane while he landing.
-Basicly dps race.

Gruul's Lair
Highking Maulgar
-First you will start at Blindeye the priest. Interupt his healing at all cost. Wound poison will help in case your raid misinterupt him but deadly is the best bet. Just kill him fast.
-Kigger has some knockback AoE, but not that hurt.
-Dont even think to dps Krosh Firemage, just sit back and watch or start dpsing highking.
-Watch out whirlwind from highking. Downloading bossmod help, just move away from him when whirlwind cooldown is about to finish.
-All mobs here can be rupture/poison so keep them up all the time!

Gruul
-CloS can remove slow debuff from Ground Slam. Save your CloS for this!, Very helpful. Once you get a hang of this you will never die during ground slam!
-Spread out from your fellow melee dpser and tank.
-Rupture/Deadly Poison him all the time.
-Move away if you are in Cavein.
-Dont overagro the second tank in agro list or you will get hit by hurtfulstrike.

Magtheridon
-During Chaneller phase, you should pay close attention to interupt Dark Mending. Dont let them heal or you will most likely wipe the raid. (Deadly poison here since they shouldnt allow to heal at all!)
-After that it's just tank and spank. Hit magtheridon from the back (he has no tail sweep). Go near the cube and be ready to click when he's about to cast (boss mod helps!) if you're assigned.
-Keep urself heal up around 32%, cause at 30% you will get hit 6k.
-Avoid Cavein all period of fight, and things should be fine.

That's all my tips from my experience, Anymore would be welcome. If there any mistake here i'm sorry hehe, feel free to tell me that. Addition rogue strategy for later raid boss e.g. TK,SSC are welcoming here ^^.

Since there are not enough spaces, I will provide the link to specific strategy then ^^. Thanks for all who contributed.

Tempest Keep: The Eye [Credited Starkad for all TK section!]
http://forums.wow-europe.com/thread.html?topicId=304212140&sid=1#17

Serpent Shrine
-Hydross the Unstable [Credited Neon]
http://forums.wow-europe.com/thread.html?topicId=304212140&sid=1#4
-Lurker Below, Morogrim, Karathress, Leotheras, Lady Vashj [Credited Starkad]
http://forums.wow-europe.com/thread.html?topicId=304212140&sid=1#9

Hyjal
Rage Winterchill, Anetheron [Credited Starkad]
http://forums.wow-europe.com/thread.html?topicId=304212140&sid=2&pageNo=2#22

Black Temple [Credited Compo for all BT section!]
http://forums.wow-europe.com/thread.html?topicId=304212140&sid=1#11

Cool stuff, I really needed to know what to do in these varius encounters when I first face them with my guild.

Thanks ;D

Really good, sticky!

Serpentshrine Cavern

Hydross the Unstable

- Right after MT goes in everyone DPS Hydross as hard as they can without pulling aggro. Nuke totally. This is the only phase where you can fight him without having to worry about adds. Pop CDs. Good to have shaman in group for Heroism/bloodlust. (And windfury ofc ;> )

- When tank changes him into the poison position, STOP DPS. When he changes position he will change forms(cleansed-poisoned) and he resets aggro completely. Now that he have changed form he will spawn 4 adds. 2 Will be banished by warlocks, 2 will be tanked. Kill the 2 that's getting tanked fast (they are stunable) . Once those 2 are dead you go on Hydross again and DPS him hard. When the 2 banished ones releases, the offtanks should pull them close to Hydross and then you pop blade flurry to dps Hydross and the adds at the same time. If blade flurry is not ready you just go on the adds until they are dead then move back to Hydross. MT will soon move him back into cleansed form. When he does that STOP DPS.

- When Hydross enters his cleansed form a he will spawn 4 adds again. Same here. 2 Banished, 2 tanked. Exactly same as before.

Continue doing this and get him down before the enrage timer and u got free epix! :D .


Extra notes:

-Try to stand spread out, he will do water tomb thingy.
-Poisons are useless here, he's immune. Try to get some sharpening stones.
-You can use cloak of shadows to remove the debuff in poison form.


/kek :b

If it is so that everyone can contribute, the topic starter should copy what people contributes with into hes own post, wont work if the tactics is spread over 20 pages =)

its moroes, no moroe

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Q u o t e:
its moroes, no moroe

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Considering your sig, i guess you are proud of being a racist ?
You are truly pathetic.

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Q u o t e:
its moroes, no moroe

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It's Moroes, not moroes. since care-o-meter is at 10/10 today ...... it seems.

nice idea for a topic so I'll add my 0,02$ from my point of view

Lurker below

position yourself as far back from the MT as possible, you can dps from side / back, but when the sprout comes, you want to be exactly behind him
on sprout move in the right direction dps-ing him on the way (you can jump in the water to avoid sprout as well but you're losing some dps time)
be careful with your aggro, or you may die fast (less harmful to raid) or start the sprout in the wrong place (not on the MT) and screw your raid completely. his aggro doesn't reset because of submerge
avoid whirls - back off a few secs before it comes, then run in and go on nuking
on submerge - dps melee ads after the tank gets them, number of them depends on the tactic your guild uses (we keep 2 sheeped), usually you should have time to help on ranged ads on the platform if needed, after the melee one is down
rinse and repeat until he's dead

Morogrim Tidewalker

one of the most boring fights for the rogue, pretty straightforward, but there are some things you should be aware of
dps the boss away from the murlock path (so your blade flurry won't get any on your back)
try to save your healing pots / healthstones for watery graves, so you can get back into fight quickly
watch your hp, if you're not healed after earthquakes, take care of it yourself
when watery graves are no more, hug the wall and dps him (this should get you out of the way of wandering bubbles)
sword rogues pray for talon to drop :D

Fanthom Lord Karathress
1st of all, make a macro
/target spitfire totem
whenever the shaman drops the totem, drop whatever you're doing and go nuke it asap
ads should go down fast, so do your best
we kill them in the hunter - shaman - priest order
after the 2 ads are down (hunter and shaman), make sure the pet also dies, then proceed to the priest
watch her heals, help to interrupr if needed (there should be a person assigned to that eariler though)
watch your health, she can get you in trouble, use Clos everytime you're low on hp and run out and bandage
try to save all your healing consumables for the boss, you can't expect much healing on him
when the priest is down, go all out on boss (trinkets, cooldowns etc), try to stay alive as long as possible, Clos helps a lot here if used well

Leotheras the blind
you can ignore the ads before the fight, it may get unlucky and you get mind blasted, no reason for risking, you won't die but its just stupid to lose lots of hp before the fight begins :)
general tip for the fight - stay spread
he starts in human phase, give tank a few secs then start nuking, I usually don't bother with s&d at this phase, the whirlwinds just come too fast to use it, just ss / evis or whatever you do, DO NOT put any dot on him
watch the timer for whirlwind, about 5 sec before it starts run out and get some distance (standing near the place where the boss is before the pull usually works for me)
if you get WW debuff on you, you're probably toast, unless some nice healer saves your behind :)
after ww give the tank a few sec and nuke again
try to get as much cp stacked on him as possible before the demon phase, when he turns into demon pop up Clos (just in case, to avoid the fire thingy), position yourself behind him, wait for tank to grab some aggro, use your saved combo points for s&d and go all out - this is the time when you deal the most dmg to the boss, so use it. if you get the inner demon, you should get rid of it very quickly (if it kills you, log out and delete your character pls :D )
rinse and repeat until 15%
when he splits, demon should be tanked away and pose no threat to you, but whirlwinds will be a pain. since its a race with time at this stage, try to stay alive and do whatever dmg you can. popping AR and evasion is also a good idea, use everything you have to nuke him down as fast as possible

Lady Vashj
phase 1
dps her as every other boss, don't worry if she roots you (you may use vanish or imp sprint if you want, it doesn't change much though), DO NOT use Clos on the roots in any case
be very aware of the static charges if you get one use Clos on it asap and go on dps-ing, if you get it again - curse your bad luck, run away from other raid members and accept the healing
phase 2
this part of the fight is all about control
if you're on the tainted elemental duty, watch the timer on tainted, help your group out with killing elementals, when you spot a tainted elemental kill it ASAP (it despawns quickly, so be fast) and throw the core to the assigned person on your side
avoid getting into the strider, watch your surroundings, no1 should die in this phase, so if some1 does, be happy its not you (taking a blame for a wipe is not what you want :D )
if you're on the naga, just dps them down as fast as possible, remember to stay behind them, they have a nasty cleave
save your healing consumables for phase 3, you'll need it
phase 3
its basically the same as phase 1 with the addition of spore bats, which put a sort of "enrage timer" on the fight. dps the boss, be aware of the static charges (ppl tend to forget about it), be fast with getting out of the green stuff on the ground, do everything to stay alive
go all out on the boss, vanish if needed to drop aggro, you want her dead as fast as possible
when she dies, pray for the loot :)

that's pretty much it for now, hope it helps a little
I'll try to add TK tactics later on

Great work, read it again for spelling mistakes, and keep it updated from people contributing and it'll deserve a sticky :)

Black Temple


High warlord Naj'entus;

Melee should try to stand in groups of 2, while being spread out from others to avoid taking massive to the aoe effect on his spines damage while still being close enough to your partner to be able to pull out the spine if they get hit by it.
When tank gets enough agro you can do as much dps as possible, ofc don''t overagro as you will no doubt die in one hit. Take potions to this fight as it is very hard for the healers with all the random damage hitting the raid. He will use Tidal Shield every 60 seconds, in perfect conjunction with Clos ;) when the shield goes up make sure you are above 8500 hp(just in case), and when you hear raid leader giving the 'throw spine' shout on vent hit your clos button to resist the 8500 damage, saving the healers a massive job and also saving you from dying to any needle spines after it hits you.
Do not always rely on CLos to save your life as sometimes the throw call will be before it is ready.

Use your cooldowns wisely, aka just after a bubble - no point wasting AR on an immune boss ;)

Also, he has a large hit box so you can stand quite far back with your melee partner in order to make clicking a Spine that impales them much easier.

Supremus

Easy fight.

15 minute enrage timer, staying alive is more of a priority than dps'ing. He will do average damage to the tank while hitting a hurtful strike on an offtank, it is said it hits the player closest in range with the most hp apart from the MT, we've had some weird 'incidents' happening though, where melee were getting gibbed even though offtank was fully healed and in range.

Apart from that its tank + spank for Phase one, just be aware of the moving fire along the ground, they are easy to see and avoid and can be cloak of shadowed. 60 seconds into phase one, Phase 2 hits. However it is a good idea to run out 8-10 seconds before the phase starts(DBM or bigwigs will have a timer), because in Phase two he becomes like Thaladred - he sets gaze on someone and follows them for about 15 seconds, if he gets in range of them he will hit them and most likely kill them. Try to get out of range fast since often when he picks a target for the first few seconds he runs very fast before slowing a much more managable pace.
Guides say you can run in and dps him in between changes but we've had some changes 5 seconds after the one before, and remember its more about survival than it is dps. Also in this phase there will be small volcanoes spawning in random locations and spout out lava in an aoe of it for 5 yards or so, they hit for 4k fire damage every tick so avoiding them is a good idea while still trying to keep range from supremus. You can vanish the gaze, however this isnt always a good idea since he will just target someone else - only use vanish if you know he will kill you. 60 seconds after you kite him around he goes back into Phase one and the volcanoes stop spitting out lava before despawning. Tank should be there to pick him up so you can gogo dps again until Phase 2 comes.

Not exactly fun fight for a rogue, however the neck he drops is best in game and the chest isnt too shabby either ;) nice item there for mace rogues too.



Shade of Akama

Relatively easy fight, as a rogue you will be dpsing the channelers next to where the Shade is at the start. They have 100 000hp, with low armor values(having your dps warrior one mob ahead and sundering in preperation for you is always a bonus). With the rogues on them they die very fast. They have no agro so go nuts, however keep your Adren rush for the Shade himself, you can safely use Blade flurry on the first mob and have it ready for Shade. While you are up there some Sorcers will no doubt come up and start channeling, these can also be nuked without threat of pulling agro. When the adds at the top of the stairs are down your next target is Shade of Akama himself, he will be tanked by Akama(the good one :p) and you cannot pull agro.
This is where it becomes a real DPS race, all of the dps will be on him at this point and you have about a minute to do 1 million damage to shade of akama. A good geared rogue can do anything from 1300-1600 dps on this fight, and its needed as you need just under 1700 raid dps to down the Shade before he kills Akama. Blow your Adren rush/haste pots/blade flurry here and hope you have a shaman in group for bloodlust.

Sometimes the shad bugs, in which he comes down earlier than he should and then you can ignore adds and just nuke him to death for your even easier free loot.
Good fun for a rogue with a nice belt in the loot table.

Teron Gorefiend

Now this is a fun fight :>
Rogue is probably the strongest class here, hurray \o/
DPS him from behind, but do not over agro and most importantly keep your vanish!

He hits one tank, but for massive damage. Also there is shadow bolts flying at the raid from above hitting random members. He does Incinerate on random targets which should be cleansed or just quickly outhealed, it ticks every second for anything from 3k-3500 fire damage. Use Clos if it hits you, you'll save a healers mana as well as your life if you happen to take a shadowbolt right after, you need fast reactions for this.
The other ability he has is called Shadow of Death, it has a casting time and he targets the raid member who gets it. The mark is applied and a 55 second debuff is applied, when this debuff expires the raid member will die and become a ghost spawning four constructs. Looks a little something like this: http://img409.imageshack.us/img409/9428/121v2v62bqt0.jpg

Thats a guildie of mine, i would never ever use that UI xD. The tactic for this is to run up the complete oppsosite side of the room before it expires so that when you spawn the constructs and control your ghost they have a long way to get to the raid,as when they spawn they will move to the raid and startr hitting them hard and most likely causing a wipe.
When you become the ghost you get a pet bar. The order of attacks is : Spirit volly, Spirit Chains(its like frost nova) then start using Spirit Lance, Spirit lance has no cooldown and slows the Construct, so what you do it Lance one, them tab to second, then hti the third then fourth then back to first.
This ensures the speed debuff is always on all of them so they cannot get to the raid and wipe people. When Volley is ready again use it followed by the chains again and then Lance them to deatha fter that(they should be almost dead by now).

if you are successful and all of your constructs are dead(important that they are) then you can move to teron gorefiend and start using the attack on him(pet action button one). it hits for about 900 and lowers his damage dealt by 5% afaik, stacking up. You control the construct for one minute, after this you lose control of it and it despawns, leaving you dead for the rest of the fight.

HERES THE GOOD PART: if teron targets you, then you can Vanish while his cast is at about 80%. Doing this means you will skip a phase of Constructs and you will not get the mark(vanish bug ftw).
if you vanish too early he will simply cast it on another raid membere right after, and too late an you will get the mark which cannot be removed by Clos.

This fight is relatively easy is people can kill their constructs before they start abusing the raid, and he drops the best cloak in game, and possibly the best bracers as well. The thrown weapon is also damn sweet.

Sorry the explanation is a bit long, but if you get your constructs wrong you will wipe the raid :)


Gurtog Bloodboil

Usually use 3 tanks on this fight, so make sure and stay behind them on agro(much like void reaver)
He cleaves so make sure to stay behind him at all times, also his fel acid ability is a frontal cone attack(can be clos'ed if you happen to get it). Phase one he will disorientate the current tank causing them to lose agro momentarily, and also a rhreat knockback like VR. so it is important you do not overagro any of the tanks on this fight as it will kill you, and if you are unlucky he will turn round and cleave when you take agro and then all your dps is out \o/

When Phase 2 hits its a good idea to be a bit away from him incase he mortal cleaves you while turning to the raid member with Fel Rage. Fel Rage only occurs in Phase 2 - Its a random target and it will Increase their armor by 15000, their health by 30000, Healing done by 100%, damage done by 100%(for both you and Gurtog himself) and size my 100%, IE imba on taurens and gnomes :>

You also will get an Insignificance debuff, meaning all of your attacks cause no threat so you can freely nuke away. If you are the one to get the Fel Rage then hit Evasion and tank him, do as much damage as possible in this time. Whatever you do, DO NOT VANISH. if you vanish he will turn to the person highest on agro(most probably a tank) and hit them very very hard, remember you have an armor and hp buff in this time, others do not! If you are near someone who gets the fel rage debuff then get the hell away from them, as he still cleaves only now twice as hard, and also does Geyser, which deals 5k nature damage to the target and anyone in 5yard range.(ok ok i went to bosskillers for that one >.>)

Phase one will happen again 30 seconds after phase two hits, and it rotates like this the while fight(until 10 minutes when he will enrage and nuke everyone).

His loot is not that good for a rogue, he drops the 100dps offhand dagger though.


Reliquary of Souls

Very strange fight, and rogues are put to good use on it.

3 stage fight.

Phase 1 : Depending how your guild does this you might be used you might not, but in all probability you will. He has threat table, he attacks the person in nearest range and hits for 1k, not bad but when you consider you cannot heal at all in this phase it

becomes a problem. Rogues come in useful because of Evasion, since the damage it does cannot be healed in any way, dodging his attacks is a massive bonus. Setting up a rotation for this is a good plan, either between the tanks and rogues, or the whole raid can take a few hits. to get his 'agro' you simply walk directly under him and the current tank moves out a little. Thats about it for that phase, just dont have anyone die =)

Phase 2: when phase 2 hits the entire raid gets healed and the boss is tanked by a warrior, you will be happy to know the healers can heal now. Rogues become very useful on this stage because of kick, and you need to interrupt as much casts of Spirit shock, while being very careful NEVER to interrupt the cast of Deaden, it is very important the tank spell reflects this into the head. It increases damage taken by 100% for ten seconds and is needed to be able to kill this phase in time, because an aura is applied to the whole raid. The aura reduces mana, increases healing done and every single point of damage you do will be returned to you as half of what you did. So you have to be very careful here not to over dps and kill yourself, not to interrupt deaden and to always interrupt Spirit Shock.

Phase 3: dps race! yay! Make sure to stand behind the head to avoid taking any Soul Screams.
Vanish, Adren rush, Haste pots and blade flurry should all be used in this phase as it really is a race against time as the raid will be taking damage from the aura(which ticks for an increasing amount over time) and also Spite. I havent actually got hit from spite so do not know if Clos works.

Drops nice gloves with haste on them.


Well thats as much as i have experienced in BT, im sure some may want to add to it.

gj man, I've just started BT (supremus atm), lots of very good tips there

Vote 4 sticky - very nice tips around here - put them together in the first paragraphs and make it sticky - always very good to know WHAT to do at special encounters.

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Q u o t e:
Vote 4 sticky - very nice tips around here - put them together in the first paragraphs and make it sticky - always very good to know WHAT to do at special encounters.

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Lol about spelling. Fixed.

Added additional tactics from various people.

Still lacking Tempest Keep: The Eye ^^.

there you go then :)

Void Reaver
ok for the start - ppl call him "Loot Reaver" for a reason, since this guy is basically free loot
unfortunately the fight is one of the "legendary" anti-melee encounters, just in theory, but a lot of raid leaders just starting 25man raiding will whine and cry about that, so there's your chance to prove them that they're wrong :)
there are some things you have to be aware of
1st - pounding. does dmg to everyone in melee range every 12 secs for 5 sec (iirc), its approximately 1.2k per tick. there are 2 ways to deal with it. 1st one is just take it the hard way, and get healers assigned to melee dps, its actually the best method to nuke him down fast, but for many guilds attempting him for the first time this may not be an option. 2nd way is to stay just on max of his melee range (which is quite huge) and when pounding comes, just take a step back
also make good use of Clos, if you're doing the step-back way, its good to give you the chance to blow your cooldowns without losing half of their duration by running out. if you just stay in, its a good support if you're low on health and want to give your healers some time
2nd - arcane orbs. if you're always in and taking pounding, you have nothing to worry about (unless you get very unlucky), if you run out, there's a slight chance that it targets you - if that occurs, just run a few yards away from it, its not going to chase you, it will just come to the place where you stood while targetted and explode
watch your aggro and be careful not to overnuke, use vanish whenever needed (or get one-shotted :) )
if you do the encounter with staying in for the whole duration, you should shine on dps meters (top 5 should be guaranteed)

he drops t5 shoulders (which are really medicore imo) and a nice class trinket

Al'ar
a fun encounter, but you have to be aware of what's going on all the time in phase 2
phase 1 is very simple, you don't even touch the boss, instead you kill the adds he spawns, one by one, they should be tanked in the corner. you have to remember that ads explode when they die, dealing significant damage and throwing you back for a huge distance. you can either make a Clos rotation with other rogues, and save combo points for when the add is at 10-8%, then pop up clos and nuke it down, or just all run out and finish it off from distance
phase 2 - you dps the boss. he will start from the ground, then occasionally fly up and turn into a meteor and hit the ground again, then rise up from the flames, spread out during this ability. after he reappears, he will summon two phoenix adds (same as in phase 1) which should be tanked near the wall. another thing he does is flame patch, and this one is very nasty - he casts a fiery "ring" on the ground (its an instant cast), everyone within the area of the ring will take massive fire damage, you have to be very fast and run out, or you'll die. the room is big enough to move freely, but you have to be aware of the flame patches, they're your main enemy. also, you want to kill him relatively fast, or you will get too many ads (unless your guild uses the tactic with killing the adds, mine didn't, we just offtanked them and killed them after the boss was dead). use your dps cooldowns whenever they're ready, use clos for flame patch if you suddenly get in trouble.

he drops really sweet MH and OH fists

High Astromancer Solarian
a very dpsintensive encounter, one of my favourite, its relatively easy though
since Blizzard announced that her abilities will be totally reworked, these tips may not be valid soon, but for now they shoud be ok
she will be tanked where she stands, in the middle of the room. nuke her down, do whatever you can, this is a dps race. you have to nuke her into void form as fast as possible (that is - take her down to 20%), the longer the fight takes, the harder it gets
things that bother you are: arcane missles (massive arcane damage, she targets one person and nukes him, you can Clos out of it, but you have to be very fast) and wrath of the astromancer - a dot on one person, which stays for 8 secs, deals 600 dmg every 2 sec and then skip to another nearby player when the duration ends - we had 2 warriors with stacked AR gear standing away from the rest of the raid, when you get it, run to them and "give" them the debuff, then go back dps-ing (you can't clos out of it)
she has 3 phases
phase 1 is humanoid form, abilities described above
phase 2 - she teleports to the middle of the room, then after 10 seconds she disappears and opens 3 teleports (beams of white light). mobs will spawn from that teleports, 1st melee ones, these are tanked by using demo shout, then 2 priest adds and solarian will come out. your job in this phase is to interrupt the priests - they will try to heal the boss (they also cast smite, ignore it). priests are also stunnable, do everything you can to not let them heal the boss. DO NOT run to the beams straight away, wait for the adds to be gathered for aoe or you may end up with some of them chasing you. you will have enough time to wait for all the adds to be gathered and then move to the beams. after the priests are down, go back on the boss
phase 3 - she turns into a giant voidwalker. nothing fancy, just tank and spank, if you got her to this phase, you already killed her, she just doesn't realise it yet :D

she drops a really decent bracers

Updated TK strategy by Starkad

Kael'thas Sunstrider
this is the one of the best encounters I've seen in the game so far, its very challenging and complicated, but its also a lot of fun. if you got that far, be ready for serious amount of wipes, the learning process is very long and painful, but also very rewarding
because of the complexivity of the fight I will not go into full details, and just leave some general tips for our role during the fight
this fight is all about control, you have your roles to fulfil, so does everyone else in the raid, the key to winning is perfect execution

phase 1

you fight 4 Kael's advisors, they come 1 by 1. the key is to kill them in designated parts of the room, since they all come back in phase 3, and if killed randomly, they may cause a lot of trouble
1st is Thaladred - works like Buru in AQ20, sets his gaze on 1 person and follows him. do not melee him under any circumstances, if he gazes at you, you're done. let the ranged get him down, try to plan ahead where you move if he'd put the gaze on you
2nd is Sanguinar - nothing special , just tank and spank
3rd is Capernian - stay away from her! find yourself a nice and cozy spot on the other side of the room, so you won't get any stupid ideas like throwing knives at her (I got once :D ), and wait for ranged to get her down
4th and last is Telonicus - pretty much tank and spank as well, but with a little twist, he will cast a debuff (remote toy) on random players, it works just like on Chromaggus in BWL, stunning you every few seconds, you can use clos to remove the debuff. he also casts bombs which deal significant damage, so just wait for the tank to get him into final tanking position, then nuke him down.
phase 1 doesn't have a timer, you can take it easy and position the adds around the room. when the last add is down, phase 2 starts

phase 2
Kael will summon weapons which you need to nuke down, you will also use them later on during the encounter (yay, free legendaries :D ). these weapons are - staff, dagger, sword, shield, bow, mace and axe. bow will be killed by ranged, axe should be offtanked far away because of the cleaves, rest should be gathered in the middle of the room and aoe'd. one rogue will get a mace duty - interrupt heals. all weapons are stunnable
blow all your dps cooldowns to get weapons down asap, use blade flurry + AR to help with aoe
things to look for - staff: casts frostbolts, you should interrupt that to help the tank get it faster into the aoe zone; mace: heals (as above), sword can be stunned since it does nasty stuff to the tank, but most of the time you'll just nuke it down asap. shield: deals dmg to everyone not behind it, so you really want to position yourself (its about 1k per tick). you want to dps as much weapons down as possible, if you end up with shield and axe up on phase 3, you're good. remember to pick up the sword and the dagger (weapons despawn 1 min after killed, so don't miss them)
sword will give you a haste and run speed increase effect (chance on hit, very high procrate), dagger puts a debuff on the target, it increases magical dmg taken by 5% (stacks up to 5 times) and also frees players from Mind Control, I'll describe the use of it later

phase 3
in this phase all 4 adds will get up at once, the raid has to control them and kill them one by one as fast as possible. after you finish off the shield, go dps Thelonicus, be aware that Thaladred may put the gaze on you. one of the rogues should run after Thaladred and shiv him with the dagger to keep the debuff up. its convenient to kill Thaladred 1st, then all raid should go on Thelonicus (he drops really fast), if you have time - go dps Sanguinar, about 15 sec before phase 4 starts move to Kael and get ready

phase 4
finally you fight Kael himself. the raid should finish off 2 remaining adds and the axe, a hunter should kite the phoenixes around the room, ranged should dps the eggs the phoenix leaves - all these are none of your concern though, you'll have some other things to worry about.
one rogue should be on Mind Control duty, whenever some1 close to you gets mind controlled, use the dagger (shiv) to free him, do not use other abilities or you might nuke down a raid member (unless you have a really good explanation to do so...:D )
at least 2 rogues should stay on Kael full time and interrupt his fireballs, make a kicking rotation, a macro really helps here
every minute he will put a shock barrier, it lasts 10 sec, and has about 80k "hp", while its up, you cannot interrupt the spells Kael is casting - he will cast Pyroblasts, dealing massive dmg to the tank, each cast takes 4 sec, he will cast 3 of them, we used the tactic to ignore the 1st 2 pyros and interrupt the 3rd - if you don't interrupt the 3rd pyro, its a wipe, so be sure to do it
keep in mind that Kael is immune to taunt, so until all ads are killed by the raid, just interrupt his spells and auto - attack, giving the tank lots of time to build aggro for an all-out nuking later on
he also occasionally casts arcane blast - a 2k aoe spell, nothing to worry about, if the buff from the staff is applied correctly you will avoind the disorient effect, if not, you'll probably wipe
he also casts a "fiery zone" on the ground, the place where he casts it is random, but he may cast it where you stand, if that happends run out ASAP or you'll die instantly
when all the adds are down, go all out on the boss to get him to 50% asap, keep in mind that you still have to interrupt his spells

phase 5
when you get him to 50%, phase 5 will start. if you have most of the raid alive up to this stage, its pretty much a kill. he stops casting pyroblasts (still casts the shield though, just ignore it) he still casts fireballs which you need to interrupt. he also stops mind controlling people. about every 1-1.5 minute he will cast gravity lapse - you will "swim" in the air for 30 sec, stay away from the boss during that time (he does heavy damage to ppl close to him) and close to the ground, but do not land or you'll get thrown into the air. do not go too high, or you will take fall dmg when gravity lapse ends. after about 2-3 lapses he should be dead, and you'll be one step closer to Black Temple. gratz :)