Charizard-Mega-Y @ Charizardite Y  
Ability: Drought  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
- Flamethrower  
- Dragon Pulse  
- Focus Blast  
- Solar Beam  

Hippowdon @ Leftovers  
Ability: Sand Stream  
EVs: 252 HP / 144 Def / 112 SpD  
Impish Nature  
- Earthquake  
- Slack Off  
- Stealth Rock  
- Yawn  

Excadrill @ Focus Sash  
Ability: Sand Rush  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Iron Head  
- Earthquake  
- Swords Dance  
- Rapid Spin  

Jirachi @ Choice Scarf  
Ability: Serene Grace  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- U-turn  
- Iron Head  
- Ice Punch  
- Healing Wish  

Thundurus (M) @ Leftovers  
Ability: Prankster  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Thunderbolt  
- Thunder Wave  
- Volt Switch  
- Grass Knot  

Tapu Fini @ Leftovers  
Ability: Misty Surge  
EVs: 244 HP / 91 Def / 52 SpA / 121 SpD  
Calm Nature  
- Moonblast  
- Nature's Madness  
- Taunt  
- Defog