Vex

Weapon mastery property. Requires a feature that unlocks this weapon’s mastery; weapon proficiency alone is not enough.

Trigger and effect

When you hit a creature and deal damage using a Vex weapon, you gain Advantage on your next attack roll against that creature before the end of your next turn.

Both the hit and damage are required. The Advantage is for you, against that target. It does not give Advantage to allies or apply to a different creature.

Using and renewing the benefit

The next attack roll against that creature uses the benefit; the property does not require that next roll to use the same weapon. If you do not make that attack in time, the benefit expires at the end of your next turn.

Another qualifying Vex hit can grant the benefit again. Multiple sources do not add more d20s; apply the usual Advantage and Disadvantage rules.

Example weapons: Shortsword, Handaxe, and Rapier.

Workshop tracking

The workshop shows supported mastery information for selected, proficient weapons. Resolve targets, rolls, movement, timing and effects at the table.

All weapon masteries · weapon proficiency · basic actions.

Source: supplied Player’s Handbook (2024), chapter 6, Mastery Properties (PDF page 213; printed page 214). Paraphrased quick reference; specific rules can override these general rules.