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

Metagross-Mega @ Metagrossite  
Ability: Tough Claws  
Happiness: 69  
EVs: 244 HP / 104 Atk / 28 Def / 104 SpD / 28 Spe  
Impish Nature  
- Meteor Mash  
- Bullet Punch  
- Bulldoze  
- Power-Up Punch  

Greninja @ Choice Specs  
Ability: Protean  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 1 Atk / 30 SpA  
- Hydro Cannon  
- Hidden Power [Electric]  
- Grass Knot  
- Ice Beam