Dark Cephalords Tentacles

You invoke the power of Akkoro the Cephalord Deity. Tentacles of dark energy erupt from you and batter up to eight creatures within a 10 foot radius of you. Each creature in that area must make a Strength saving throw. On a failed save, a target takes 1d6 necrotic damage & 1d6 bludgeoning damage as they are pushed back 10ft, and can’t take reactions until its next turn. On a successful save, the creature takes half damage, but suffers no other effect.