Holcifer's Blood

You drank blood from the descendant of a god of the sun. When you end your turn in direct sunlight, regain 1 HP per level of character. When you make a death saving throw while in direct sunlight, roll with advantage.

This effect cannot be used to heal outside of combat. 

Automatically fail against any charm effects cast by Holcifer or Gordon Holcifer. If you normally have advantage against charm effects, you may still roll, but with disadvantage.