Invigorate

A living creature, or living construct, that you touch regains a number of hit points equal to 1d10 + your spellcasting ability modifier while you reduce your own hit point maximum by 2.

At Higher Levels. When you cast this spell by spending Mana points equal to a 2nd-level spell or higher, the healing increases by 1d10 and you reduce your hit point maximum by 1 additional point for each level above 1st.