Walrusi's Brawler

Through your time fighting, all you care is about winning, no matter how down and dirty you have to get.

Back Street Brawler

When you choose this archetype at 3rd level, you gain proficiency in improvised weapons. Additionally, you unarmed strike uses a d4 for damage.

One-Two Punch

Starting at 3rd level, When you use the Attack action on your turn, you can use a bonus action to do one of the following against the same target:

• Make one unarmed strike 
• Make a grapple attempt
• Make a shove attempt

Calloused Knuckles

Starting at 7th level, Your unarmed strike now uses a d6 for damage.

Sucker Punch

Starting at 7th level, you have learned to look for prime openings to hit someone hard when they do not see it coming.

Whenever you make an Opportunity Attacks you may use an unarmed attack. If you hit with the unarmed attack then the target must make a Constitution save (8 + Proficiency Modifier + Strength Modifier) or be stunned until the end of their next turn.

Grappling Master

Starting at 10th level, you gain the following features against a creature you are grappling:

• You can attempt to grapple a creature two sizes larger than you if you have both hand free. You have disadvantage on the attempt.
• You have advantage on attack rolls.
• As an action, you can force the creature prone in any unoccupied space 5ft away, ending the grapple, the creature takes damage equal to a single unarmed attack
• You can use your action to try and change your hold on a creature grappled by you. To do so, make another grapple check. If you succeed, you and the creature are both restrained until the grapple ends.

Kidney Shot

Starting at 15th level, You can roll a d8 in place of the normal damage of your unarmed strike.

Kick them while they are down

Starting at 15th level, you make sure the opponents cannot fight back trying to keep them down. 

If a creature tries to stand while in range of you, you may make an opportunity attack against the creature. If successful then then creature stays prone and loses the rest of their movement. You do not have advantage with this attack.

Brutal Punch

Starting at 18th level, You can roll a d10 in place of the normal damage of your unarmed strike.

Iron Body

Starting at 18th level, your body has been beaten, bruised, poisoned, and burned. You survived through it all and it has mad you stronger. 

You have advantage on all Constitution Saving Throws. You also gain resistance to bludgeoning and poison damage.