Sudden Impact

Bone spikes stun enemies for 1 second.

Unlocked at level 6

Blighted Marrow

Damage is increased by 15% for each enemy Bone Spear passes through.

Bone Spear's damage turns into Poison.

Unlocked at level 7

Metabolism

Provides an additional charge but doubles the health cost.

Unlocked at level 60

Aura of Frailty

Becomes an aura that curses all enemies within 15 yards.

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

Unlocked at level 39

Self Sacrifice

If you would die with a Simulacrum active, instead the Simulacrum is destroyed and you are fully healed.

Unlocked at level 65

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