Charizard-Mega-Y @ Charizardite Y  
Ability: Drought  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Flame Charge  
- Solar Beam  
- Focus Blast  
- Flamethrower  

Dragonite @ Choice Band  
Ability: Multiscale  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Outrage  
- Extreme Speed  
- Ice Punch  
- Fire Punch  

Tapu Koko @ Wiki Berry  
Ability: Electric Surge  
EVs: 40 HP / 248 SpA / 220 Spe  
Timid Nature  
IVs: 0 Atk  
- Nature's Madness  
- Taunt  
- Volt Switch  
- Hidden Power [Ice]  

Slowbro @ Leftovers  
Ability: Regenerator  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Toxic  
- Slack Off  
- Scald  
- Counter  

Kartana @ Grassium Z  
Ability: Beast Boost  
EVs: 128 HP / 128 Atk / 252 Spe  
Jolly Nature  
- Leaf Blade  
- Knock Off  
- Synthesis  
- Defog  

Garchomp @ Expert Belt  
Ability: Rough Skin  
EVs: 200 Atk / 56 SpA / 252 Spe  
Hasty Nature  
- Hidden Power [Ice]  
- Earthquake  
- Stone Edge  
- Stealth Rock