Naruto: Rise of the Hidden World

You grow dozens of hardened bone spikes from your body and launch into a spinning strike. All enemies within 10 ft must make a Dexterity saving throw. On a failure, they take full damage and begin bleeding (2d6 per turn until healed). On a success, they take half damage and suffer no bleeding. While active, melee attackers take 2d4 piercing damage if they hit you. The spell lasts for 1 round per level of the spell (concentration).