I think "The Boulder Beatdown" would be a better name. Also, should have increased melee damage and resistance, and slower movement and attack speed.

how about ullapool for heavy. but hitting someone removes his fists. that makes him unable to switch weapons nor do any damage til being healed by medic or the resuply locker

+ Knocks enemies back when hit
+ doing damage charges (something, haven't thought of name), when fully charged, use alt-fire to activate. Once activated your next 3 swings are instant kills. Carries over after death.
- 30% attack speed
- 10% movement speed

I think it should make it so that you can't use any other items in your inventory if you have to use your hands for it. It's pretty much a Demoknight but a more durable one that can't charge. Also I think it should have +33% Health, +Knockback, +10% Bullet resistance, +10% Damage, -10% Explosive resistance, -20% Attack speed, and -10% Movement speed. I think that this could be something really cool if it's made into a whole set like the Demoknight.

+20% Damage
-When set alight the cement melts.You take 50 Dmg and it returns to normal fists unless restored by ressuply locker

But...cement doesnt melt when on fire. I dont see how fists made of a stonelike subtance would actually increase the damage done by fire.

Stuns enemy for 1.5 sec on hit
Mini-crits vs stunned enemies
50% slower swing speed
Stun cannot stack up