Conjure a Black Hole at the target location that draws enemies to it and deals 700% weapon damage as Arcane over 2 seconds to all enemies within 15 yards.
Mastery
Unlocked at level 61
Event Horizon
The Black Hole also absorbs enemy projectiles and objects from Elite monster affixes within 15 yards.
Call down shards of ice that deal 1075% weapon damage as Cold over 6 seconds to enemies in a 12 yard radius. Multiple casts in the same area from the same caster do not stack.
Force
Unlocked at level 27
Apocalypse
Increase the area of effect of Blizzard to a 30 yard radius.