You can make an opportunity attack when a hostile creature that you can see moves out of your reach. You use your reaction to make one melee attack against the provoking creature.

Cost

Reaction

Trigger

A hostile creature you can see moves out of your reach

Description

You can make an opportunity attack when a hostile creature that you can see moves out of your reach. You use your reaction to make one melee attack against the provoking creature.

trigger

A hostile creature you can see moves out of your reach