Trade secret!
Yeah, but no one reads here my reply....
Anyway (in order):
- Clefable
Not only does she wall Machamp, she also walls Dragonite and Tyranitar. Also has access to Dazzling Gleam. The difference is, Celfable has higher ATK and she got STAB. Most underrated defender. - Slowbro
A Confusion/Ice Beam Slowbro is a beast in defense. Beautiful type coverage. Ice beam not only covers Grass Type but also Dragonite and Zapdos.
Slowking with Blizzard is also good, but Ice Beam as 90 power two-bar charge move is better. - Muk
Muk walls Machamp as well. Force switch to Psychic types, but Muk has access to Dark and Bug moves. Good coverage.