Dark Bead

You summon seven beads of dark energy that fly towards a creature within range. Make a ranged spell attack for each bead. On hit, each bead deals necrotic damage equal to your spellcasting ability modifier. If your score a critical hit with a dark bead, you add your proficency bonus to the damage.

Additionally, any hit creature must make a constitution saving throw. On a failure, their hit point maximum is reduced by the necrotic damage dealt.

At Higher Levels. When you cast this spell using a spell slot of 5nd level or higher, the spell creates one more bead for each slot level above 4th.