Kommo-o @ Electrium Z  
Ability: Bulletproof  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Close Combat  
- Thunder Punch  
- Ice Punch  

Greninja @ Mystic Water  
Ability: Battle Bond  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
- Surf  
- Water Shuriken  
- Dark Pulse  
- Taunt  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 248 HP / 92 Def / 168 SpD  
Sassy Nature  
IVs: 20 Spe  
- Volt Switch  
- Fleur Cannon  
- Iron Head  
- Hidden Power [Fire]  

Landorus-Therian (M) @ Rocky Helmet  
Ability: Intimidate  
EVs: 252 HP / 252 Def / 4 Spe  
Impish Nature  
- Stealth Rock  
- Defog  
- Knock Off  
- Earthquake  

Charizard-Mega-X @ Charizardite X  
Ability: Blaze  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Outrage  
- Flare Blitz  
- Substitute  

Tapu Koko @ Choice Scarf  
Ability: Electric Surge  
EVs: 24 HP / 252 SpA / 232 Spe  
Modest Nature  
- U-turn  
- Thunderbolt  
- Grass Knot  
- Hidden Power [Ice]