
Your body refuses to die even when it knows it is causing you to fight harder
Once per Long Rest, after you take damage you gain one of the following benefits for the next hour afterwards you gain a point of Exhaustion.
Gotta go Fast
- Increase your Base Speed by 10ft
- Gain an Additional Attack
Float like a Butterfly, Sting like a Bee
- Deal an Additional 1d10 Force Damage when you hit a Creature
- Increase your Ac by 2
Like a Truck
- You can use your Bonus Action to use the Attack Action
- Gain Resistance against all non-magic attacks
Never Gonna Die
- Gain Fast Healing 1
- Advantage on all saving Throws

Flighted from this guy
https://www.dndbeyond.com/feats/11194-adrenaline-surge
Maybe give a follow?
https://www.youtube.com/user/Firegiant5/featured
fast healing is not a thing in 5th edition.
I’d take like a truck any day.