Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 224 HP / 28 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Charge Beam  
- Flash Cannon  
- Thunderbolt  

Zygarde @ Groundium Z  
Ability: Power Construct  
EVs: 128 HP / 24 Atk / 212 Def / 144 Spe  
Impish Nature  
- Coil  
- Thousand Arrows  
- Substitute  
- Rest  

Charizard-Mega-X @ Charizardite X  
Ability: Blaze  
EVs: 232 HP / 20 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Flame Charge  
- Outrage  
- Flare Blitz  
- Substitute