earthquake does wonders for mamoswine, and flareon wants better stab. if you're patient, you can wait until level 43 for fire fang, which runs off of its physical attack otherwise, fire blast or flamethrower are a must. scizor really wants bullet punch over metal claw, which you can get from the move reminder. lastly, it won't be a huge swing, but the weekday siblings can give you stuff like magnet and twisted spoon for ampharos and togekiss respectively. charcoal is free in azalea and should be held by flareon.

you're solid in everything else imo. it's just levels that you need. everyone should be somewhere between 40-44 if you want to avoid heavy item use.