Cheap Shot

You can exploit a creature's momentary distraction when it is hit by an attack, takes damage, or fails a saving throw.

Prerequisite: The Zhentarim faction membership, Character level 6.

Benefit: Whenever a creature within 5 feet of you is hit by an attack, takes damage, or fails a saving throw from a spell or ability made by a creature other than you, you can use your reaction to make a melee weapon attack against that creature.

Once you use this feature, you cannot use it again until you finish a long rest.