The final boss of Mount Hyjal, fought at the World Tree. An extremely punishing survival encounter where a single death can cascade into a raid wipe via Soul Charge.
Tank the boss at the World Tree and never move him. Melee split into two groups on each side of Archimonde, at maximum melee range, 13+ yards from each other and the tank. Ranged spread in a wide semicircle, 13+ yards apart. Everyone must use Tears of the Goddess (quest item) to slow fall during Air Burst. Move out of Doomfire immediately. Warriors use Berserker Rage for Fear immunity. Healers prioritize Grip of the Legion targets. One death triggers Soul Charge which can chain-wipe the raid.