Holy Light

4th-level Evocation
Casting Time: 1 action
Range: 30 feet
Components: VS
Duration: Instantaneous

You call a beam of pure Holy Light from the heavens, bathing you and an ally in its succor. Your target regains 8d6 hit points and you regain hit points equal to half of that amount. This spell has no effect on constructs.
If used on an undead creature, that creature make a Dexterity saving throw or suffer 8d6 holy damage, or half as much damage on a successful one. You regain hit points equal to half the damage dealt.
At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the healing or damage are increased by 2d6 for each slot above 4th.

Source: Homebrew