The commoner has proficiency in one skill of the DM’s choice and has Advantage whenever it makes an ability check using that skill.
Adrenaline Rush (Dash as a bonus action to gain temporary HP equal to PB.).
Adrenaline Rush. You can take the Dash action as a Bonus Action. When you do so, you gain a number of Temporary Hit Points equal to your Proficiency Bonus.
You can use this trait a number of times equal to your Proficiency Bonus, and you regain all expended uses when you finish a Short or Long Rest.
Relentless Endurance (Drop to 1 HP instead of 0 once per long rest.).
Relentless Endurance. When you are reduced to 0 Hit Points but not killed outright, you can drop to 1 Hit Point instead. Once you use this trait, you can’t use it again until you finish a Long Rest.