Street Fighter

The Street Fighter
Believe it or not, there are actually regular humanoid races in Ramdrant. Refugees, convicts, and fugitives from other nations, they are driven into hiding in the dangerous streets and understreets of the capital city. These places are innately dangerous, and as such, only those who become as vicious as some of the worst of the monstrous races around them survive. And so, the Street Fighters were born. Dirty fighters that aimed to maximize the damage with their fists and the environment around them, Street Fighters aim to win at any means necessary. Even crotch punches.

Dirty Tricks
Street Fighters are masters of improvised fighting, and also use a good bit of poison in their careers. At 8th level, the Street Fighter treats any improvised weapon as a monk weapon, and adds 1d4 damage to any improvised weapon attack. This increases to 1d6 at 13th level, and 1d8 at 18th level. In addition, the Street Fighter can use poisons while unarmed without poisoning themselves. They gain resistance against poison damage, advantage on saves against poisoned and the poisoned condition, and finally, poisons they apply to their attacks use a modified DC of 8 + Proficiency mod + their Dexterity mod.

Sucker Punch
When the Street Fighter catches an opponent offguard, it can be devastating. They go for the eyes, the throat, the crotch... anywhere vulnerable. At 13th level, when the Street Fighter hits with an unarmed attack, if they had advantage on the attack or if there was at least one ally adjacent to their target, the attack is a critical hit. This feature can only be applied once per turn.

Brick Buster
A good Street Fighter always has a brick in their pocket, to hit people in the faces with. At 18th level, when the Street Fighter uses Stunning Strike with a improvised weapon, the target has disadvantage on their save. However, the improvised weapon immediately breaks after the action.