Elden Ring Ashes of War WAVE OF DARKNESS Display and Use OP Broken?

Instead of my usual jump attack counter testing this ash and the result is fantastic. Uses modest amount of FP for what it does- 3 waves of damage and stun plus relatively quick cast, similar totime it would take to do aheavy attack. Seems to be perfect for 2h melee Build.

This generally wont work with big bosses. Cant one shot stagger no matter what, but seems to be good for mini-sub bosses