I have this knockoff Drain Fafnir that I got a long time ago along with an L/R string launcher and grip. From what I've found, the combo isn't what proper Drain Fafnir's have, so I was wondering if it was good or not by other people's standards. The combo is Drain Fafnir 7 Accel. (I think that's how combos are meant to be typed out as)

Drain Fafnir 00 / 0 / 7 Cross/Wall Bearing' / Atomic' / Destroy'

Is that a competitive combo for drain fafnir?