Ampharos-Mega (M) @ Ampharosite  
Ability: Mold Breaker  
Level: 50  
EVs: 252 HP / 4 Def / 248 SpA / 4 SpD  
Quiet Nature  
IVs: 0 Atk / 30 SpA / 4 Spe  
- Thunderbolt  
- Dragon Pulse  
- Hidden Power [Fire]  
- Protect  

Cresselia @ Mental Herb  
Ability: Levitate  
Level: 50  
EVs: 212 HP / 60 Def / 236 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Skill Swap  
- Ice Beam  
- Helping Hand  
- Trick Room  

Heatran @ Chople Berry  
Ability: Flash Fire  
Level: 50  
EVs: 252 HP / 236 SpA / 20 SpD  
Quiet Nature  
IVs: 0 Atk / 20 Spe  
- Overheat  
- Earth Power  
- Flash Cannon  
- Protect  

Charizard-Mega-Y (M) @ Charizardite Y  
Ability: Drought  
Level: 50  
EVs: 204 HP / 116 Def / 188 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Flamethrower  
- Solar Beam  
- Heat Wave  
- Protect  

Thundurus @ Sitrus Berry  
Ability: Prankster  
Level: 50  
EVs: 252 HP / 24 Def / 188 SpD / 44 Spe  
Calm Nature  
IVs: 0 Atk / 30 Def  
- Thunderbolt  
- Hidden Power [Ice]  
- Taunt  
- Protect  

Conkeldurr @ Life Orb  
Ability: Iron Fist  
Level: 50  
EVs: 212 HP / 252 Atk / 44 SpD  
Brave Nature  
IVs: 0 Spe  
- Drain Punch  
- Ice Punch  
- Mach Punch  
- Protect