Daily Punch 8-28-17 Cruel Master Warlock Eldritch Invocation for DnD 5e

Liking Starfinder, so let’s bring some ideas to DnD 5e! Here’s one for the pet class, the Warlock.

Cruel Master

Prerequisite: 5th level

When you attack an enemy that you’re familiar is engaged with and your familiar has not attacked this round, you gain advantage on that attack while you’re familiar gains disadvantage.

Thought?