Unfinished Business

You have a mission to complete, friends that need you, people looking for you to save them. Whether you want to or not, your body refuses to fall. Not yet.

When you are reduced to 0 Hit Points but not killed outright, you can recover 1/4 of your maximum Hit Points instead at the cost of taking on a grievous injury. This can be a severed body part, a permanent reduction of your maximum Hit Points equal to one roll of your Hit Die, 1d4 spells permanently lost (chosen by DM), or another type of sacrifice. You can’t use this feature again until you finish a Long Rest.

Your DM must be satisfied with your sacrifice, do not try to minimize this cost.