Ok, Bahamut, use extremespeed on Growlithe to finish it off. Then Hit Meinfoo with A Dragon Pulse and then a Thunderbolt! (If Meinfoo tries to attack you on action 2 or 3, use agility to get mightyena between you and Meinfoo)
Fuma, use Recover to heal up, then go for a Psychic on Meinfoo. Follow up with another recover!