Vex
Mastery Property · SRD 5.2.1 p. 90
If you hit a creature with this weapon and deal damage to the creature, you have Advantage on your next attack roll against that creature before the end of your next turn.
Mastery Property · SRD 5.2.1 p. 90
If you hit a creature with this weapon and deal damage to the creature, you have Advantage on your next attack roll against that creature before the end of your next turn.