Venusaur @ Black Sludge  
Ability: Overgrow  
EVs: 252 HP / 96 Def / 4 SpA / 156 SpD  
Calm Nature  
IVs: 0 Atk  
- Giga Drain  
- Sludge Bomb  
- Toxic  
- Protect  

Magnezone @ Choice Specs  
Ability: Magnet Pull  
EVs: 80 HP / 252 SpA / 176 Spe  
Modest Nature  
IVs: 0 Atk  
- Volt Switch  
- Thunderbolt  
- Flash Cannon  
- Tri Attack  

Heatran @ Leftovers  
Ability: Flame Body  
EVs: 252 HP / 152 Def / 56 SpA / 48 Spe  
Bold Nature  
IVs: 0 Atk  
- Flamethrower  
- Flash Cannon  
- Earth Power  
- Stealth Rock  

Salamence @ Choice Scarf  
Ability: Moxie  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Claw  
- Outrage  
- Earthquake  
- Fly  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 248 HP / 8 Atk / 252 Def  
Impish Nature  
IVs: 30 Atk  
- Transform  

Tentacruel @ Black Sludge  
Ability: Liquid Ooze  
EVs: 252 HP / 88 Def / 64 SpA / 104 SpD  
Calm Nature  
- Rapid Spin  
- Sludge Bomb  
- Scald  
- Knock Off