Charizard-Mega-Y @ Charizardite Y  
Ability: Blaze  
EVs: 248 HP / 80 Def / 108 SpD / 72 Spe  
Jolly Nature  
- Roost  
- Rock Slide  
- Hidden Power [Ice]  
- Flamethrower  

Latias @ Choice Scarf  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psyshock  
- Ice Beam  
- Healing Wish  
- Defog  

Landorus-Therian @ Rockium Z  
Ability: Intimidate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Earthquake  
- Stone Edge  
- Swords Dance  

Tapu Koko @ Shuca Berry  
Ability: Electric Surge  
EVs: 104 HP / 12 Def / 176 SpA / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Defog  
- Volt Switch  
- Hidden Power [Ice]  

Tyranitar @ Choice Band  
Ability: Sand Stream  
EVs: 80 HP / 252 Atk / 176 Spe  
Adamant Nature  
- Pursuit  
- Stone Edge  
- Crunch  
- Earthquake  

Kommo-o @ Salac Berry  
Ability: Bulletproof  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Substitute  
- Belly Drum  
- Drain Punch  
- Thunder Punch