Magtheridon

Magtheridon is a quick raid encounter, similar to that of Onyxia’s Lair. It is the raid wing of the Hellfire Citadel dungeons.
Abilities

Quake - knockback that hits every player every second for 7 seconds. The first cast occurs 40 seconds after Magtheridon activates.
Blast Nova - 2,500 damage every 2 seconds for 10 seconds to every player […]