Grasp of the Undying

You have learned to siphon the life force of your enemies through your touch, weakening them to strengthen yourself. You gain the following benefits:

Life leech Grasp: While grappling a creature, you can impose a penalty of 1d4 on its attack rolls, ability checks, and saving throws for the duration of the grapple.

Necrotic Strike: Your unarmed strikes against a creature grappled by you deal necrotic damage instead of bludgeoning damage, with a damage roll of 1d8. You heal an amount of hit points equal to the necrotic damage dealt by these strikes. If you heal hit points over your maximum, you gain the excess as temporary hit points, up to a maximum of 5 times your proficiency bonus.

Siphon Essence: Outside of combat, you can use this ability on objects to heal yourself for 10 hit points plus your proficiency bonus. The amount of healing increases based on the size category of the object, as determined by the DM. This use of the ability does not grant temporary hit points.