Chronomatic

Ability Score Improvement:

Increase either your Strength or your Constitution by 1 up to a maximum of 20.

Delayed Pain:

When you are in combat, the first time you would take any damage you can delay it and take the damage on your next turn in the following round.

Delayed Death:

If you roll a death save and fail you can choose to succed instead. You can use this feature only once every 24 hours.