Dirty fighting

Thank you to Thasm for the original idea!

You know that there is no such thing as fighting honorably. There is only surviving, and you do anything you must to survive. When you pick this feat, choose two of the following dirty moves.

• After You!: When you win a contested check against being shoved or grappled by a creature, you can use your reaction to make your own shove attack against that creature, you may use Dexterity (Acrobatics) check for this new contest. If you win, the creature that tried to push you 5 feet with a shove is instead pushed through your space to the square they tried to shove you into, if they tried to grapple or knock you prone, they are knocked prone instead.
• Chuck a Rock: On your turn you can make an improvised thrown weapon attack as a bonus action by throwing any object you have at hand, dealing 1d4 bludgeoning damage on a successful hit. On a critical hit the target becomes stunned until the end of your next turn. You can use this move a number of times equal to your Proficiency Bonus until you finish a short rest.
• Headbutt: When a creature within 5 feet of you misses you with a melee attack, you can use your reaction to headbutt it. Make an unarmed melee attack against the creature, on a hit you deal your regular unarmed strike damage and the creature must make a Constitution saving throw (DC 10 + your Strength (Athletics) modifier). On a failed save the creature's turn immediately ends and they cannot take reactions until the start of their next turn. You can use this move once before finishing a short rest.
• Pocket Sand: As a bonus action you can attempt to throw sand in the face of a creature within 5 feet of you. You may only do so in an environment that has sand or dirt, or if you have sand on you (such as Little Bag of Sand item). The target must succeed a Dexterity saving throw (DC 10 + your Dexterity (Sleight of Hand) modifier). On a failed save the creature becomes blinded until the end of your next turn. Has no effect on creatures that don't have eyes or don't rely on sight. You can use this move once before finishing a short rest.
• Prone Fighting: You no longer suffer disadvantage on melee attacks while being prone if you pick this option. When you fall prone next to a creature, you may use your reaction to make a shove attack against the creature, you can't use this shove to push the creature away, only to make it fall prone. You can use this move once before finishing a short rest.
• What's That!?: As a bonus action you can attempt to distract a creature that can see and hear you. Choose a point that you can see, the creature must make a contested Wisdom (Insight) or Intelligence check against your Charisma (Deception) check. On a fail, the creature turns to look in the direction you specified and leave an opening in their defence, all your attacks against the creature have advantage until the end of your turn. You can use this move once before finishing a short rest.