Mawile-Mega @ Mawilite  
Ability: Huge Power  
EVs: 52 HP / 252 Atk / 204 Spe  
Adamant Nature  
- Play Rough  
- Fire Fang  
- Ice Punch  
- Thunder Punch  

Garchomp @ Dragonium Z  
Ability: Rough Skin  
EVs: 248 SpA / 8 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Outrage  
- Swords Dance  
- Substitute  

Serperior (F) @ Sitrus Berry  
Ability: Contrary  
EVs: 168 HP / 60 Def / 28 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Glare  
- Taunt  
- Defog  

Thundurus (M) @ Expert Belt  
Ability: Prankster  
EVs: 176 HP / 8 Def / 76 SpA / 248 Spe  
Timid Nature  
IVs: 0 Atk  
- Volt Switch  
- Hidden Power [Ice]  
- Focus Blast  
- Thunder Wave  

Chansey (F) @ Eviolite  
Ability: Natural Cure  
EVs: 240 HP / 252 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss  
- Wish  
- Soft-Boiled  
- Stealth Rock  

Victini @ Choice Scarf  
Ability: Victory Star  
EVs: 248 HP / 40 Def / 220 Spe  
Jolly Nature  
- V-create  
- U-turn  
- Final Gambit  
- Thunder Wave