Warmaster Blackhorn Strategy for 10 man normal:

[Stevonivich]

First Phase:
you have to survive three waves of adds and kill all flying drakes (two drakes per each wave).

The drakes drop two kinds of adds: Twilight Elite Dreadblade (fully armored) is dropped off first, and Twilight Elite Slayer (without helm) a few seconds later. They both have a charge ability that marks a path on the ground, and after a few seconds does a lot of damage to anyone standing on that path. They also stack different debuffs on their tank, so tanks should alternate the adds they will be tanking each wave in order to drop the stacks from the previous add. However, Dreadblades also cleave when applying the debuff and should be killed first while faced away from the raid.

Throughout the fight, the following things will happen:

Friendly NPCs will regularly harpoon Twilight Assault Drakes, reeling them in, close to the ship, where they should be damaged by your ranged DPS players.

Drakes will cast Twilight Barrage at random spots on the deck, which deal significant damage to the ship unless someone (two players or a tank) get hit by it - the damage is split between all affected players.
Twilight Onslaught is a big version of the previous spell, it will be preceded by "Goriona! Give them hell!" emote from the boss. The whole raid should stack up on the large circle for this and use defensive cooldowns.

Twilight Sapper will be dropped off somewhere on the deck, and will run to the hut. If they reach it, the ship will take a large amount of damage (20%). They enter stealth shortly after being dropped off, so aoe and Flare should be used. They can be gripped, slowed and stunned, and don't have much health.

Therefore, the priority for add killing during Phase One is as follows:
1.Twilight Assault Drakes (when they are close enough to the ship to be damaged by ranged DPS).
2.Twilight Sappers (as soon as they land, unless your raid is opting to ignore them and let them through).
3.Twilight Elite Dreadblades and Twilight Elite Slayers.

Once three waves are taken care of and all drakes are killed, the boss will jump off on the deck.

In the mean time, Goriona will start creating large patches of fire on the ship, so all ranged have to burn her down until she flies off (she has 11M health, she flees when her health gets to a quarter left).

Second Phase:
This phase is much simpler and a lot less chaotic than Phase One. As soon as the phase begins, a tank should pick up Blackhorn and move him to the center of the ship.

Melee DPS players should attack Blackhorn, while ranged DPS players should aim at bringing Goriona to 25% health as soon as possible. Everyone will need to move out of the fire from Goriona.

Once Goriona leaves the fight (when she reaches 25% health), everyone can focus fully on Warmaster Blackhorn.

Follow the steps below to ensure a smooth kill:
•Make sure that the raid is spread around Warmaster Blackhorn, so that as few people as possible will need to move for each Shockwave (it is marked by a visible graphical effect). Players should try to be close to the boss, making it easier to move out of the conic area.
•Have your tanks taunt Warmaster Blackhorn off of each other at 2 stacks of Devastate.
•If you are a caster, stand at least 10 yards away from the boss. This will prevent Disrupting Roar from interrupting your casts and silencing you.

Healers should expect moderate to heavy tank and raid damage. The boss' Vengeance will cause him to deal increasing amounts of damage.

As the fight progresses, tanks should work out a defensive cooldown rotation, and should coordinate with healers for a better result.

As the boss's health goes down, he gets Vengeance, making him deal more damage. For that reason, melee should dps very slowly until the drake is gone, then everyone should burn the boss fast before the tanks die (he has 22M health).

The most annoying part of the Twilight Sappers is they drop into a smoke bomb as they arrive in the fight, so they become untargettable for a crucial second or so when they start running. Consequently, dps should have a Macro for easily targeting them:

/tar Twilight Sapper

For rogues:

#showtooltip Deadly Throw/cleartarget/tar Twilight Sapper/focus /targetlasttarget/castsequence [@focus,exists] Redirect, Deadly Throw

For DK:

#showtooltip Death Grip/cleartarget/tar Twilight Sapper/focus /targetlasttarget/cast [@focus,exists] Death Grip/cast [@focus,exists]

Chains of IceHit the button AFTER they've dropped to the deck and you see them run out of their smoke bomb and head up the ship. It will DG them to you and apply chains of ice, without disturbing your target for the adds you're tanking.

Tips & Tricks:
• The Warmasters roars are physical damage and it deals alot of damage. Don't be afraid to use a cooldown.
• Feint works to reduce the damage of meteors.
• Shadow Priests can soak major meteors alone with Dispersion
• Fire Mages can soak major meteors alone with Cauterize.
• If you're a Unholy Death Knight, your time to shine is when huge meteors are incoming by using Anti-Magic Zone.
• If you're a Priest and your good with Leap of Faith, this encounter is great for you as Players who aren't paying attention to the Warmasters shockwave will appreciate a grip to survive.

Great Video of this fight: http://www.youtube.com/watch?v=3P4KCQGWcCY

[Brydock]

At this point I'm not sure exactly how we can get past this part. I think that we were doing all we could for the most part.