Charizard-Mega-Y @ Charizardite Y  
Ability: Drought  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Fire Blast  
- Solar Beam  
- Focus Blast  
- Roost  

Excadrill @ Air Balloon  
Ability: Sand Rush  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Earthquake  
- Swords Dance  
- Rapid Spin  
- Iron Head  

Kartana @ Grassium Z  
Ability: Beast Boost  
EVs: 136 HP / 120 Atk / 252 Spe  
Jolly Nature  
- Leaf Blade  
- Synthesis  
- Knock Off  
- Defog  

Slowbro @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
- Scald  
- Future Sight  
- Teleport  
- Slack Off  

Tyranitar @ Leftovers  
Ability: Sand Stream  
EVs: 248 HP / 24 Atk / 12 Def / 224 SpD  
Adamant Nature  
- Stealth Rock  
- Rock Blast  
- Earthquake  
- Crunch  

Tapu Koko @ Heavy-Duty Boots  
Ability: Electric Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Thunderbolt  
- Dazzling Gleam  
- U-turn  
- Roost