Gift of Blood

Weapon · 75000 gp · Weight 0

This is a +3 cold iron dagger that was used in weird rituals and is still thirsty for blood. While the wielder of the dagger is in combat, each time someone dies, the dagger increases its potency. The wielder can use its power to make any spell empowered, as though using the Empower Spell feat. Each usage spends one potency.