I don't know why this is in the Weapons section even though it's a head cosmetic but as a joke I say let's indulge Mr/Ms/Mx Coolchou Zhao and give the Texas Chainsaw Killstreak some Stats like it's a weapon. I'll start.

Level ??? head
Slot: Secondary

= Secondary fire (with any weapon deployed) makes the player charge forward at high speed in a straight line (turning is limited to very slight angles to the left or right). During the charge, the next melee swing is a guaranteed mini-crit at 25% charge or a critical hit at 60% charge. Any enemy hit by only the shield charge takes up to 50 damage (scales by distance)
+ On hit: Bleed your enemy for 10 seconds, timer resets by hitting them with your melee
+ 25 max health
- Less metal gain from ammo boxes
- No random Crits

This is just my idea, feel free to share yours