Durable

4th Level Feat, Constitution 13+

Repeatable: No Hardy and resilient, you gain the following benefits: Ability Score Increase. Increase your Constitution score by 1, to a maximum of 20.
Defy Death. You have Advantage on Death Saving Throws.
Speedy Recovery. As a Bonus Action, you can expend one of your Hit Dice, roll the die, and regain a number of Hit Points equal to the roll.