Close Wounds

You touch a creature and cause their existing wounds to close, but not heal. When you target a creature that is missing hitpoints, they gain temporary hit points equal to one of their hit die type + your spellcasting ability modifier. If you target a creature that is not missing any hit points, the spell fails.

At Higher levels: When you cast this spell at 2nd level or higher, roll the number of the target's hit die type equal to the spell level.