Ricochet

Corpse Lance has a 20% chance to ricochet to one additional target.

Corpse Lance's damage turns into Poison.

Unlocked at level 34

Plaguelands

Enemies in Land of the Dead suffer 100% weapon damage as Poison each second, up to a maximum of 10,000% weapon damage total.

Unlocked at level 48

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

Molting

Leaves a corpse at your original location when used.

Unlocked at level 49

Blood and Bone

Now also creates a Simulacrum of Bone, but the duration is reduced to 10 seconds.

Unlocked at level 69

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