Mew @ Iapapa Berry  
Ability: Synchronize  
EVs: 252 HP / 56 Def / 16 SpD / 184 Spe  
Bold Nature  
IVs: 0 Atk  
- Ice Beam  
- Transform  
- Tailwind  
- Stealth Rock  

Landorus-Therian (M) @ Choice Scarf  
Ability: Intimidate  
EVs: 248 HP / 48 Atk / 212 Spe  
Adamant Nature  
- Earthquake  
- Stone Edge  
- U-turn  
- Superpower  

Charizard-Mega-Y @ Charizardite Y  
Ability: Drought  
EVs: 252 HP / 40 SpA / 216 Spe  
Modest Nature  
IVs: 0 Atk  
- Heat Wave  
- Overheat  
- Tailwind  
- Protect  

Diancie @ Rockium Z  
Ability: Clear Body  
Shiny: Yes  
EVs: 252 HP / 144 Atk / 12 Def / 56 SpA / 44 SpD  
Brave Nature  
IVs: 19 Spe  
- Diamond Storm  
- Moonblast  
- Trick Room  
- Protect  

Kartana @ Figy Berry  
Ability: Beast Boost  
EVs: 44 Atk / 232 SpD / 232 Spe  
Adamant Nature  
- Leaf Blade  
- Sacred Sword  
- Swords Dance  
- Detect  

Tapu Koko @ Life Orb  
Ability: Electric Surge  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Volt Switch  
- Dazzling Gleam  
- Protect