Unholy Aura

Foul necromantic energy radiates from you in an aura with a 30-foot radius, granting allies the untiring strength of the grave. Until the spell ends, the aura moves with you, centered on you. Each nonhostile creature in the aura (including you) has resistance to holy damage, and their movement speed is increased by 10 feet. In addition, a nonhostile, living creature regains 1 hit point when it starts its turn in the aura with 0 hit points, while nonhostile undead creatures regain 1 hit point when it starts its turn in the aura and have advantage on saving throws against being turned.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the radius of the spell increases by 10 feet per spell level above 4th.