Weapon of Showmanship (Patreon)

Weapon (any), common

When you reduce a Small or larger creature to 0 hit points or score a critical hit against a target with an attack using this weapon, you can create a harmless sensory effect or illusion such as that from the prestidigitation cantrip. The effect can appear on the target of the attack or in the area immediately surrounding it.

Putting the 'final' in 'Finale'.