Bane of the Everlasting

When a creature dies within 5 ft of you, dies by your actions, or you sacrifice 10hp; you gain one of the following:

-Gain 1d4 temporary hp

-Add 1d6 burning damage on your next attack (dissipates if next attack misses)

-Add +2 on the next attack roll against a creature (dissipates if next attack misses)

When you use this bonus, you must make a Con saving throw 12 or higher. If you fail, you must move to the nearest possible target and attack (chosen at random if needed). If you are unable to reach the next creature by the end of your next turn, the effect dissipates.