Transfusion

You touch a willing creature and establish a brief connection between your bloodstreams. You can transfer hit points from yourself to the target, or from the target to yourself (if the target is willing).

You can transfer up to 2d8 hit points. The donor loses the transferred amount, and the recipient gains that many hit points. The transfer cannot reduce the donor below 1 hit point.

This spell has no effect on bloodless undead or constructs.

Blood Sacrifice. When casting this spell, you take 1d4 damage as your blood mingles with the target’s.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the amount of hit points transferred increases by 1d8 for each slot level above 1st.