I'm getting walled hard fighting Persephone in Selene City. I can't even get past her first pokemon, Mega Gengar because nothing I have outspeeds it. My team is: Delta Charizard, Delta Haxorus, Alakazam, Arcanine, Delta Gardevoir and Hitmonchan. Right now my only strategy is to level the fuck out of Alakazam until he can get a ohko on Mega Gengar but I don't really want to do that. Is there anything I can catch in a previous route and level up instead to win this fight easier?