Twin Sacred Blast

You utilize the power of both holy fire and dark flame in a unison attack. Make a ranged spell attack for each blast. On a hit, the target takes 2d8 Radiant damage on one blast and 2d8 Necrotic damage for the other. Afterwards, the target(s) may make either a constitution saving to save against being blinded from holy light, or a wisdom saving throw to save against being frightened by necrotic energy.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the radiant and necrotic damages increase by 1d8 for every two slot levels above 3rd.