Fisticuffs

You've formed powerful bonds with everyone in your party. If anybody tries to hurt them, they'll have to go through you first.

When an enemy makes a melee attack on a member of your party (other than you), you can use a Reaction to intercept the attack and make yourself the primary target. Roll 1d20 for a DEX Check. On fail, you take the full amount of damage from the attack. On success, you only take half damage and you can use a Bonus Action to roll 2d12. That number plus your STR modifier is dealt as Bludgeoning damage to the attacking enemy. You can only do this twice before your next Short Rest.