Desire's Temporal Reversion

You warp and reverse time around the body of a creature within range (which can include yourself), healing its wounds to a point before they were inflicted.  The creature regains a number of hit points equal to 4d6 + your spellcasting ability modifier.

This healing can affect constructs and undead.

Altering the flow of time is an increasingly taxing experience on the body. Should the caster perform this spell more than once per day, they must make a Constitution saving throw (versus their own spell save DC) or take one point of exhaustion.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the healing increases by 1d6 for each slot level above 4th.