Revitalize

You touch a willing creature that has taken damage within the last round, reducing your own maximum hit points by 1 and causing it to regain 1d4 hit points, up to the maximum hit points of damage it took that round.

This spell’s healing increases to 1d6 when you reach 5th level, 2d4 at 11th level, and 2d6 at 17th level.