Heroism

Casting Time: 1 action
Range: Touch
Duration: Concentration, up to 1 minute
A willing creature you touch is imbued with
bravery. Until the spell ends, the creature is
immune to being frightened and gains temporary
hit points equal to your spellcasting ability
modifier at the start of each of its turns. When
the spell ends, the target loses any remaining temporary hit points from this spell.
See PHB, pg. 250