Celestial Pulse of Rejuvenation

A wave of radiant energy shimmers from your body as you channel the vitality of your ancestors and let out a burst that resembles that of a Halo. Each friendly creature within range regains Hit Points equal to 2d8 + your Charisma modifier. 

In addition to restoration, any party member hit with the Halo gains temporary hit points equal to your Paladin level + your Constitution modifier and if the Halo hits any Ally below 50% health, an Ancestral Guardian starts to resemble within the light, wrapping the Ally in radiance. They gain a Resistance of 1d6 to the next attack on them, be it physical or spellcasting. 

 Using a Higher-Level Spell Slot: The healing increases by 1d8 for each spell slot level above 1. 

On the 15th level: This spell gains an additional 30ft in range.