Serperior @ Light Clay  
Ability: Contrary  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Leaf Storm  
- Light Screen  
- Reflect  
- Glare  

Medicham-Mega @ Medichamite  
Ability: Pure Power  
EVs: 60 HP / 252 Atk / 12 Def / 184 Spe  
Adamant Nature  
- Focus Punch  
- Ice Punch  
- Substitute  
- Recover  

Jirachi @ Leftovers  
Ability: Serene Grace  
EVs: 252 HP / 36 Atk / 156 SpD / 64 Spe  
Careful Nature  
- Stealth Rock  
- Iron Head  
- U-turn  
- Healing Wish  

Tapu Bulu @ Grassium Z  
Ability: Grassy Surge  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Swords Dance  
- Horn Leech  
- Superpower  
- Synthesis  

Rotom-Wash @ Wiki Berry  
Ability: Levitate  
EVs: 252 HP / 200 Def / 56 Spe  
Bold Nature  
IVs: 0 Atk  
- Hydro Pump  
- Volt Switch  
- Defog  
- Thunder Wave  

Tapu Koko @ Choice Scarf  
Ability: Electric Surge  
EVs: 232 Atk / 56 SpA / 220 Spe  
Lonely Nature  
- Wild Charge  
- Hidden Power [Ice]  
- Brave Bird  
- U-turn