Valak

Summons a Psyfiend with 23,084 health for 12 sec beside you to attack the target at range with Psyflay. Psyflay Deals up to 1% of the target's total health in Shadow damage every 0.8 sec. Also slows their movement speed by 50% and reduces healing received by 50%.

Assault an enemy's mind, dealing 37,561 Shadow damage and briefly reversing their perception of reality. For 7 sec, the next 122,669 damage they deal will heal their target, and the next 122,669 healing they deal will damage their target. Generates 10 Insanity.

Voidform sends out slow-moving bolts of Shadow energy at random locations every 0.5 sec for 3 sec, dealing 2,552 Shadow damage to all targets within 8 yds, and causing them to flee in Horror for 2 sec.