Blissey (F) @ Heavy-Duty Boots  
Ability: Natural Cure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Teleport  
- Toxic  
- Seismic Toss  
- Soft-Boiled  

Avalugg @ Rocky Helmet  
Ability: Sturdy  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Body Press  
- Recover  
- Rapid Spin  
- Roar  

Celebi @ Chople Berry  
Ability: Natural Cure  
EVs: 252 HP / 220 Def / 36 Spe  
Bold Nature  
IVs: 0 Atk  
- Psychic  
- Calm Mind  
- Recover  
- Heal Bell  

Kommo-o @ Leftovers  
Ability: Bulletproof  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
- Rest  
- Boomburst  
- Dragon Tail  
- Stealth Rock  

Articuno @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Haze  
- Roost  
- Ice Beam  
- Toxic  

Rhyperior @ Heavy-Duty Boots  
Ability: Lightning Rod  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Earthquake  
- Swords Dance  
- Megahorn  
- Rest