Hai, Erick here again with some mad scientist thing I did. Yes it seems stupid on the surface, but when you think about it, it's pretty sexy. This isn't a full team, just a little idea. 
 
Shelmet (M) @ Eviolite 
Trait: Hydration 
EVs: 180 HP / 76 Def / 252 SDef 
Calm Nature (+SDef, -Atk) 
- Acid Armor 
- Baton Pass 
- Bug Buzz 
- Toxic 
Hey look it's Shelmet. So you know it's gonna be a rain team. Once he's out; you do the usual Shelmet things. Acid Armor to +6. Seeing how not many things can actually stop Shelmet once he starts boosting, it shouldn't be a problem. Then you Baton Pass to who? 
 
Chansey (F) @ Eviolite 
Trait: Natural Cure 
EVs: 244 HP / 252 Def / 12 SDef 
Bold Nature (+Def, -Atk) 
- Aromatherapy 
- Seismic Toss 
- Toxic 
- Softboiled 
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH!!!!! NO NO NO! IT'S UNHOLY! Yes, it is. Chansey is a monster once it gets started. After some testing, I saw that it takes 28% damage from a Lucario's Close Combat and 26% damage from a Scizor's  Superpower. In other words, Chansey can start taking hits to the face and start laughing at them. Now I'm gonna leave it here for y'all to criticize.