2.Strategy：
The encounter begins after a brief conversation between Akama and Illidan, after accepting a quest from Akama just outside of the encounter area. After the conversation, Illidan will immediately attack, and appears to focus on players first.
According to the "Shear" ability, tank has to have shieldblock out of cooldown when Illidan casts it. Spamming shieldblock all the time does not work. Illidan is immune to taunt.
Akama will participate in the battle during at least the earlier stages of the fight, and when close to death, will automatically drink a potion which restores his health completely. Soon he will run away to defend the stairs from incoming adds.
In Phase 3, Illidan often uses Metamorphosis and enters his demon state, he enlarges and uses ranged AoE fireball on every member in the raid. This ability can not be outranged - spread out, since if you stand too close, you be hit by more than 1 fireball. A warlock is required to tank him in that phase with max shadowresistance, since aura he has makes impossible to anyone close range to him. a Warlock's Shadow Ward spell helps soften the incoming damage. In the meantime, the rest of the raid spreads out from each other as the vials he throws amongst the raid will kill groups of people if the damage is allowed to combine (He throws a single vial directly onto each player at the same time). The melee classes may re-engage Illidan, after the phase ends.
Soon after Illidan enters his demon state, several beholders spawn around him and focus upon a random raid member, paralyzing the character until the demon is killed. If the demon is allowed to reach it's target, it will instantly kill the player. Nuking these adds down is another vital role of the rest of the raid group whilst Illidan focuses upon the Ranged tank, lest they still be alive when he returns to his normal state.