You can make an Opportunity Attack when a creature that you can see leaves your reach using its Action, its [[Bonus Action]], its [[Reaction]], one of its Speeds, or if it takes the [[Magic]] Action to use [[Rune Magic]]. To make the Opportunity Attack, take a [[Reaction]] to make one melee attack with a weapon or an Unarmed Strike against the provoking creature. The attack occurs right before the creature leaves your reach.