Gyarados @ Heavy-Duty Boots  
Ability: Intimidate  
EVs: 248 HP / 252 Def / 8 Spe  
Impish Nature  
- Rest  
- Sleep Talk  
- Waterfall  
- Roar  

Chansey (F) @ Eviolite  
Ability: Natural Cure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss  
- Wish  
- Soft-Boiled  
- Stealth Rock  

Roserade @ Black Sludge  
Ability: Natural Cure  
EVs: 252 HP / 112 SpA / 124 SpD / 20 Spe  
Modest Nature  
IVs: 0 Atk  
- Energy Ball  
- Sludge Bomb  
- Spikes  
- Synthesis  

Mamoswine @ Heavy-Duty Boots  
Ability: Thick Fat  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Earthquake  
- Ice Shard  
- Icicle Crash  
- Knock Off  

Thundurus-Therian (M) @ Heavy-Duty Boots  
Ability: Volt Absorb  
EVs: 244 SpA / 12 SpD / 252 Spe  
Timid Nature  
- Volt Switch  
- Knock Off  
- Psychic  
- Focus Blast  

Celesteela @ Leftovers  
Ability: Beast Boost  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
- Heavy Slam  
- Flamethrower  
- Leech Seed  
- Protect