Raises the corpse of a raid or party member to fight by your side. The player will have control over the Ghoul for 5 min.
Raise Ally is a level 72 Death knight ability that allows the death knight to raise a fallen raid or party member to fight for a limited time. This creature can perform a number of attacks including Fear, apply disease, stun, cause a target bleed and pummel.
As soon as someone is turned into a ghoul he will get a vehicle-bar containing the above abilities. The basic rotoation should be: Leap, Claw x3, Thrash. (or 4-1-1-1-2-1-1-1-2 ...}
Patch 3.3.0 (2009-12-08): The cooldown on this ability has been reduced from 15 minutes to 10 minutes. Cannot be used in Arenas.
Patch 3.2.0 (2009-08-04): Using the Gnaw ability while under the effects of this spell will now initiate auto-attack. In addition, the damage done has been changed from a flat value to a percentage of weapon damage.
Patch 3.1.0 (2009-04-14): Now has a cooldown greater than 15 min and can no longer be used in Arenas.
Patch 3.0.8 (2009-01-20): Raise Dead has now been split into two spells:
Raise Dead now raises a ghoul or pet ghoul (if talented). Requires [Corpse Dust] if no humanoid corpse is nearby.
Raise Ally now raises a fallen party member and has no reagent. Available at level 72.
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Claw—Claw the enemy, causing damage.
Thrash—A physical attack, injuring a single foe.
Gnaw—Chew a limb off the target, stunning for 3 sec and dealing damage.
Leap—Leap behind the targeted friend or enemy.
Huddle—Go into a defensive crouch, reducing the damage taken from melee attacks, ranged attacks and spells by 50% for 10 sec.
Explode—Explode self, destroying the ghoul and causing 787 to 913 shadow damage to all nearby enemies.
Patch 3.3.0 (2009-12-08): The cooldown on this ability has been reduced from 15 minutes to 10 minutes. Cannot be used in Arenas. 
[Corpse Dust] if no humanoid corpse is nearby.
