Instant Allyship

The art of battle is driven as much by the minds of combatants as it is their muscles, and you have made it your business to get into a foe’s head, even if only for a brief moment

When a creature makes an attack against you, you can use your reaction to make a Deception check with advantage opposed by its Insight check. On a success, the creature is briefly perplexed and not sure you’re an enemy, targeting a different creature with the attack instead.

In addition, until the end of your next turn the creature treats you as an ally (instead of an enemy) for the purposes of traits and other effects, and it cannot target you with attacks. The effects of this combat maneuver end early if you damage it.