I need pokemon leaf green help ppl?

I have the perfect pokemon to defeat the elite 4 but I dont know if the moves are . I have magneton with supersonic, sonicboom, thunderwave and spark. Dewgong with surf, rain dance, safeguard, and blizzard. Hypno with headbutt, poison gas, meditate, and psychic. Pidgeot with quik atack wirlwind wing atack and atract. Sandslash with rock slide slash secret power and cut and charizard w/ cut blast brn fly and hiper beam