Dark Blast

A burst of dark eldritch energy shoots from your hand to a creature within range. Make a ranged spell attack against the creature. The creature is forced into a Constitution and Dexterity saving throw. On a fail they are hit by the dark crackling blast and take 1d10 Necrotic damage. They will also be blinded for 1 round. The spell creates more than one bolt when you reach higher levels: three blasts +1 d6 Necrotic damage at 5th level, four blasts +1 more d6 necrotic damage at 7th level. You can direct the bolts at the same target or at different ones. Make a separate attack roll for each blast.