Curse of Incompetence

With mocking gestures, you leave the target incapable of performing at or even near its best. If the target fails an Intelligence saving throw, then for the spell’s duration, it has disadvantage on Intelligence, Wisdom, and Charisma checks made to direct a battle, determine tactics, or give directions or orders to other creatures. Additionally, each time the target
gives commands, directions, or orders to other creatures, those creatures must roll a d4 and subtract the result from their Initiative as they struggle to comprehend and implement the confusing new directions. This applies to command abilities such as the orc war chief ’s Battle Cry and the hobgoblin warlord’s Leadership.