Aku'mai

Aku'mai's chamber
Regroup beyond the opened door before starting Aku'mai. Leave the ranged players back from the hydra so Poison Cloud does not reach the whole group, and arrange poison removal before the pull. Keep a defensive ready for Frenzied Rage rather than spending everything on the opening attacks.
Aku'mai
Elite Not specifiedAku'mai combines nearby poison damage with Frenzied Rage, requiring poison removal without neglecting the tank's faster incoming attacks.
Abilities

Poison Cloud
Poison Cloud poisons nearby enemies. Keep ranged players back from Aku'mai and remove the poison from affected players; moving away does not replace curing an existing poison.

Frenzied Rage
Increases the caster's attack speed by 75% for 5 seconds., but reduces the Physical damage dealt by 15.
Save a tank defensive and additional healing for Frenzied Rage's faster attacks instead of spending them all on the opening pull.
Tank- Hold Aku'mai away from the ranged group so Poison Cloud reaches fewer players. Use a defensive when Frenzied Rage appears and tell the healer if poison is still on you.
Healer- Remove Poison Cloud from affected players while keeping the tank ready for Frenzied Rage. Stay back from Aku'mai so your own poison damage does not compete with that healing.
Damage- Ranged players should remain back from the hydra; melee players should make poison removal easy by staying in the healer's reach. Keep attacking during Frenzied Rage without moving Aku'mai into the ranged group.