This set appears to be attempting as many different sets as possible. The klutz gimmik with iron ball is interesting and unique, but you have a way better move to do so in trick or switcheroo. Mirror coat is not a good option, as lopunny is quite frail. Return should be used over bounce.
The main reason this set fails is due to the lack of a useful item. Lopunny need it's mega to deal good damage, and without it lopunny is just a slow and frail attacker with a mediocre typing. The gimmik is fun though, and I've definitely try it out someday