Charizard-Mega-X @ Charizardite X  
Ability: Tough Claws  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Flare Blitz  
- Earthquake  
- Dragon Dance  
- Roost  

Greninja-Ash (M) @ Choice Specs  
Ability: Battle Bond  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Hydro Pump  
- Water Shuriken  
- Dark Pulse  
- Spikes  

Magearna @ Fairium Z  
Ability: Soul-Heart  
EVs: 248 HP / 28 Def / 224 SpA / 8 SpD  
Modest Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Thunderbolt  
- Pain Split  
- Calm Mind  

Serperior @ Choice Scarf  
Ability: Contrary  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Leaf Storm  
- Glare  
- Knock Off  
- Defog  

Landorus-Therian (M) @ Rocky Helmet  
Ability: Intimidate  
EVs: 252 HP / 112 Def / 144 Spe  
Impish Nature  
- Earthquake  
- U-turn  
- Hidden Power [Ice]  
- Stealth Rock  

Tapu Fini @ Leftovers  
Ability: Misty Surge  
EVs: 248 HP / 16 Def / 12 SpA / 168 SpD / 64 Spe  
Calm Nature  
IVs: 0 Atk  
- Scald  
- Moonblast  
- Defog  
- Taunt