Duality Pulse

You unleash a wave of both positive and negative energy that either ravages or replenishes the vitality of those in a 120 foot long and 10-foot wide line from you in a direction you chose. For each creature in range, you can choose one of the following effects.

• An affected creature regains 8d8 hit points. This effect has no effect on undead or constructs.
• An affected creature must succeed on a Constitution saving throw or take 8d8 necrotic damage on a failed saving throw, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a 9th level spell slot, the extra damage and healing increases by 1d8.