Frost Scythe

Each enemy hit increases your attack speed by 1% for 5 seconds. Max 15 stacks.

Grim Scythe's damage turns into Cold.

Unlocked at level 45

Blood Spear

Bone Spear turns into Blood Spear. Damage is increased to 650% weapon damage as Physical at the cost of 10% Health.

Unlocked at level 53

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

Potency

Increases your armor by 100% for 2 seconds after casting.

Unlocked at level 34

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

Blood and Bone

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

Unlocked at level 69