Spirit Link

You form a spiritual link with another creature and take in its pain. When you Cast the Spell and at the start of each of your turns, if the target is below its maximum Hit Points it regains 2 Hit Points (or the difference, if lower) and you lose as many. Because this is a spiritual transfer, no effect can increase what the target regains or reduce what you lose, and it ignores temporary Hit Points on either of you. It involves neither vitality nor void energy, so it works even if you or the target is undead. While it lasts you gain no benefit from regeneration or fast healing. You can Dismiss the spell, and it ends automatically if you are ever at 0 Hit Points.