Light of Life

Prerequisite: The ability to cast at least one spell

When you cast a spell that deals damage, you may choose to have it deal radiant damage in place of its usual damage type. If you do, its damage dice are reduced one step in size-- from d12s to d10s, d10s to d8s, and so on. Spells that deal d4s of damage instead deal 1 damage per die. Once per turn, when a creature is affected by one of your spells of first level or higher that deals radiant damage or restores hit points, one ally within 30ft gains temporary hit points equal to the level of the spell.