Temporal Heal

Choose one creature in range to make the time around the target wounds accelerate, making them recover quickly. The target can spend and roll one of its unspent Hit Dice and regain a number of hit points equal to the roll plus your spellcasting ability modifier.

At Higher levels. When you cast this spell using a spell slot of 2nd level or higher, the number of Hit Dice that can be spent and added to the healing roll increases by one for each slot above 1st.