The lab you were created in tried to give you everlasting life, this is as far as they got. You gain the following benefits:
- Increase your Constitution score by l, to a maximum of 20.
- You regain 1 hit point every hour as long as you have at least 1 hit point or you are stabilized with 0 hit point. This way you can also regrow lost body parts, the time required depends on the lost body part (1d4 weeks for a finger, 1d6 months for an arm or leg).
- As a bonus action you can release a surge of regeneration in your body. For 1 minute at the end of all your turns, as long as you have at least 1 hit point, you will regain 1d4 + half your constitution modifier hit points (rounded down, minimum 1). Once you use this ability, you can’t use it again until you finish a short or long rest.
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