Tapu Koko @ Choice Specs  
Ability: Electric Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
- Rising Voltage  
- Dazzling Gleam  
- Grass Knot  
- U-turn  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 196 Def / 52 SpD / 12 Spe  
Bold Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Protect  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Sunsteel Strike  
- Toxic  
- Stealth Rock  
- Moonlight  

Tornadus (M) @ Life Orb  
Ability: Prankster  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Nasty Plot  
- Hurricane  
- Heat Wave  
- Taunt  

Tapu Bulu @ Yache Berry  
Ability: Grassy Surge  
EVs: 248 HP / 252 Atk / 8 SpD  
Adamant Nature  
- Swords Dance  
- Grassy Glide  
- Play Rough  
- Whirlwind  

Chansey (F) @ Eviolite  
Ability: Healer  
EVs: 4 HP / 252 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Confide  
- Aromatherapy  
- Teleport