Eldritch-Infused Strike

One of your limbs gets infused with crackling eldritch energy as you attack a creature within range. Make a melee spell attack against the target. On a hit, the target takes 1d10 force damage.

The spell infuses more than one limb when you reach higher levels allowing you to do multiple attacks: two limbs at 5th level, three limbs at 11th level, and limbs at 17th level. You can attack the same target or different ones as long as they are in range. Make a separate attack roll for each attack.