Cheap Shot: If you land an unarmed attack on a surprised opponent, you may roll one or more Grit dice to make your cheap shot sting. Add the Grit dice to your attack's d20 roll. If this would cause the d20 roll to be 20 or higher, the attack is an automatic critical hit. Additionally, add the Grit dice to the damage roll.

Crippling Blow: After landing any melee attack, you may roll at least two Grit dice to cripple the target. Add the Grit dice to the damage roll, and the target must make a Constitution saving throw. On a failed save, the target has disadvantage on all Strength and Dexterity checks and saving throws. At the end of each of its turns, the target may repeat the saving throw to attempt to end the cripple.

Elusive: You can weave through a brawl like nobody's business. As a bonus action on your turn, you may roll one or more Grit dice and add that value to your AC until the start of your next turn.

Facebreaker: Requires two free hands. As an action on your turn, you may expend at least 3 Grit dice to grab two foes and bash their heads together. Select two Large or smaller creatures adjacent to you on opposite sides. These targets take damage equal to the roll of the dice, and must succeed on a Strength saving throw. On a failed save, they are stunned until the start of your next turn.

Granite Chin: Your resilience in a brawl is unparalleled. If you take damage, you may use your reaction to expend one or more Grit dice and subtract that roll from the damage taken.

Haymaker: You may spend one or more Grit dice to swing a wild but powerful strike. When making a melee attack roll, take a -5 penalty to the roll. If the attack lands, double its base damage dice and add the rolls of the Grit dice.

Headbutt: After landing any melee attack, you may roll one or more Grit dice to headbutt the target. Add the Grit dice to the damage roll, and both you and the target must make a Constitution saving throw. If the target fails the save, it is dazed, and all attacks against it have advantage until the start of your next turn. If you fail the save, you take damage equal to the roll of the Grit die, and you suffer the same penalty of advantage on attack rolls against you until the start of your next turn.

Human Shield: If an attack would hit you, you may use your reaction and expend (without rolling) two Grit dice to use a human shield. Select an adjacent Large or smaller creature that was not the source of the attack. They must succeed on a Strength saving throw. On a failed save, you take no damage, and this creature takes the damage instead, on a successful save, the creature takes half damage, and you take the remainder of the damage.

Jawbreaker: After landing an unarmed attack, you may roll at least two Grit dice to send your opponent's head spinning. Add the Grit dice to your damage roll, and the target must make a Constitution saving throw, or it becomes stunned until the start of your next turn.

Leg Sweep: After landing a melee attack, you may roll at least two Grit dice to sweep your opponent's legs out from under them. Your target must succeed on a Dexterity saving throw or take fall damage equal to the roll of the dice plus a bonus that scales with its size -- +3 (Small), +5 (Medium), or +10 (Large). Does not work on creatures smaller than Small or larger than Large.

Piledriver: Requires two free hands. As an action on your turn, you may expend at least three Grit dice to piledrive a grappled target's head into the dirt. Make a second grappling check. If the target fails the check, the target takes fall damage equal to the Grit dice total roll multiplied by your fighter level, rounded down.

Shoulder Spear: After moving at least 10 feet towards a target on your turn and successfully landing your first unarmed attack, you may roll one or more Grit dice to tackle your target to the ground. Add the Grit dice to the damage roll, and the target must make a Strength saving throw. On a failed save, it is grappled by you and both you and the target are knocked prone.

Sucker Punch: If an enemy within 5 feet of you makes a saving throw, you may expend one or more Grit dice to strike in their moment of weakness, using your reaction to make an unarmed opportunity attack against them. If the attack hits, add the Grit dice to the damage roll, and the enemy has disadvantage on the saving throw.

Suplex: Requires two free hands. In place of one attack on your turn, you may expend at least three Grit dice to suplex a Large or smaller creature over your shoulder. The target must make a Strength saving throw, and Large or smaller creatures in the impact area must make a Dexterity saving throw. On a failed save, all creatures involved take fall damage equal to the roll of the Grit dice and are knocked prone.

Triangle Choke: If you successfully Grapple a creature on your turn or begin your turn with one already Grappled, you may expend one or more Grit dice to attempt to submit your target. Deal damage equal to the roll of the dice, and on subsequent turns where the target is Grappled by you, you may use a bonus action to roll the same number of Grit dice (without expending them) and deal damage equal to the roll of the dice plus your Strength or Dexterity modifier (your choice). Triangle Choke's damage cannot be mitigated by resistance or immunity.

Uppercut: As a bonus action on your turn, you may expend one or more Grit dice to follow up an unarmed attack with a devastating uppercut. Make a second attack roll with advantage, and if it hits, add the Grit dice to your damage roll.