Pokemon Emerald Mossdeep Gym advice please?

use water, dark, and ghost moves. mightyena pelipiper and tentacruel would be the ones to focus on. blaziken will get absolutely annihilated in this gym. its weak to psychic and ground so it will get wrecked and raichu will get wrecked by ground as well. try and give mightyena a dark move like crunch. dunno if that exsists in gen three. pelipiper is good give tentacruel surf too imo