Borrowed Time

Gain 1% cooldown reduction for every enemy cursed, up to a maximum of 20%.

Unlocked at level 57

Crystallization

Each enemy hit has their attack speed reduced by 20% and your attack speed is increased by 3% for 3 seconds stacking up to 10 times.

Bone Spear's damage turns into Cold.

Unlocked at level 25

Devouring Aura

Becomes an aura that consumes all corpses within 15 yards to restore 11 Essence per corpse.

The range of this effect is increased by 50% of your gold pickup radius.

Unlocked at level 38

Metabolism

Provides an additional charge but doubles the health cost.

Unlocked at level 60

Shallow Graves

Every 10 enemies killed extends the duration by 1 second up to a maximum of 2 seconds.

Unlocked at level 53

Dead Cold

Freeze all enemies caught in the explosion for 2 seconds.

Corpse Explosion's damage turns into Cold.

Unlocked at level 40