Your body became infused with unholy energy, or you have been revived and the unholy energy still clings to you. You gain the following benefits:
Undead Fortitude. When damage reduces you to 0 hit points, you can make a Constitution saving throw (DC 5 + the damage taken). On a success, you instead drop to 1 hit point. You can’t use this feature if you are reduced to 0 hit points by radiant damage or by a critical hit. After the saving throw succeeds, you can’t use this feature again until you finish a long rest.
Undying Stamina. You have advantage on saving throws against exhaustion.
Unholy Touch. As a bonus action, you imbue your next attack with unholy magic. When you hit a creature with that attack roll, it can’t regain hit points until the end of its next turn. You can use this feature a number of times equal to your proficiency modifier per day.
