Cannot heal others’ injuries but can move them to his own body via physical contact. If possible the injury moves to the body part he touches it with (so a cut on your leg would become a cut on his hand, a gunshot to your shoulder could become one of equal severity on his arm, etc.) If it’s something that can’t be equally transferred that way (eg. missing limb, missing eye, internal bleeding) then he just moves it to himself 1:1 (so he would lose the limb/eye/etc.)

I feel like this one is self-limiting in that there’s only so much of it he could do before he like, collapses. Y’know.