How do i beat Cyrus at Spear Pillar?

I have a lvl 49 gengar it has shadow ball phsicic dream eater and dark void.I have a torterra lvl 45 it has crunch razor leaf rock smash and rock climb.I have a lvl 36 staraptor it has close combat fly defog and take down.I have a lvl 38 luxray it has thunder, spark ,strength and crunch.I have a lvl 40 crobat it has shadow ball fly poison fang and return.I have a gyarados lvl 33 it has dragon rage fire blast surf and avalanche.