You sacrifice some of your health to mend the wounds of a creature. You take 1d4 + your spellcasting modifier necrotic damage. You then heal a creature of your choice in range equal to the amount of damage you take. This spell has no effect on undead or constructs.

The spell dice increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4).