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

Tapu Koko @ Choice Specs  
Ability: Electric Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Volt Switch  
- Thunderbolt  
- Dazzling Gleam  
- Hidden Power [Ice]  

Latios @ Choice Scarf  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Psyshock  
- Trick  
- Surf  

Mantine @ Leftovers  
Ability: Water Absorb  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Defog  
- Scald  
- Roost  
- Toxic  

Landorus-Therian @ Assault Vest  
Ability: Intimidate  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Earthquake  
- Knock Off  
- U-turn  
- Stone Edge  

Greninja @ Expert Belt  
Ability: Protean  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Gunk Shot  
- Dark Pulse  
- Scald  
- Ice Beam