Por cierto, yo estuve en la party ayer con leon, y en cuanto a los spells de Anzu esto es lo que pude notar:

Cyclone of Feathers: Targets a random party member (minus tank) and puts them in a cyclone for 6 seconds
Este spell lo tiraba constantemente y todas las veces me afecto a mi que era el tanke, cosa que segun wowhead no deberia. A veces lo llegaba a tirar 2 veces seguidas; durante el tiempo que yo estaba en el ciclon no recibia ningun tipo de daño.
Considered a magic effect, but the debuff also makes you immune for normal dispels. Can be dispelled with Mass Dispel.
No teniamos priest para probar si se podia dispelear con Mass Dispel.
This ability has a cast bar and can (and should) be interrupted.
No le pude cortar el casteo, y estoy en duda si realmente lo casteaba o lo tiraba como instantaneo.

Paralizyng Screech: A 6 second AoE stun on the entire group. Has a 5 second cast time but is not interruptible in any way. It is recommended to place heal over time spells and shields on the tank when you see the cast. Cannot be outranged.
No lo tiro en toda la pelea.

Spell Bomb: 8 second curse, burning 2000 mana and deals 1000 damage if a player affected by it casts a spell; Anzu whispers the player affected by the debuff, effectively warning of the effect. It is very important that casters take note of when they have this debuff on them.
Este creo que no lo tiro.

Banish/Spawn Birds: At 66% health and again at 33% health he will banish himself and spawn non elite crows with about 14k health. The crows do around 700 damage on cloth (around 300 with the Hawk Spirit up) and can be crowd-controlled.
No desaparecio ni spawneo nada en ningun momento.

El daño fisico que me hacia era aproximadamente de golpes entre 2 a 4k.

Más alla de todo Anzu da una muy linda pelea, al lado de este los otros 2 boss son de dificultad fumace.