Empowered Trophy

Grabbing hold of a trophy that you have from a previous kill of the same species or creature type, you use its lingering power to grant you a boon in your confrontation against another of its kind.

The caster grants themselves a 1d4 bonus to any attack rolls, saving throws, or ability checks related to a single specific type of creature (dragons, abominations, beasts, elementals, etc.) The caster has to have a piece of another creature of the same type which they have personally previously killed. These bonuses only apply to rolls that directly involve a creature of the same type as the one chosen when the spell is cast.