Ok, first off you NEED 4x Choice band. Choice band lets Metagross hit 180, and with 1 Dehlmise hits the magic number of 190 to One hit any stage 1 GX.
Take out 2 Frying pan for 2 Choice band.
Second off, you only need one lillie, I would take one out for an apricorn maker. Post rotaion its a...