Primarina @ Primarium Z  
Ability: Torrent  
EVs: 80 HP / 252 Def / 100 SpA / 76 Spe  
Modest Nature  
IVs: 0 Atk  
- Protect  
- Icy Wind  
- Moonblast  
- Sparkling Aria  

Serperior @ Leftovers  
Ability: Contrary  
EVs: 248 HP / 40 Def / 4 SpA / 44 SpD / 172 Spe  
Timid Nature  
IVs: 0 Atk  
- Leech Seed  
- Substitute  
- Taunt  
- Leaf Storm  

Charizard-Mega-X @ Charizardite X  
Ability: Blaze  
EVs: 212 HP / 32 Atk / 176 SpD / 88 Spe  
Jolly Nature  
- Flame Charge  
- Flare Blitz  
- Outrage  
- Belly Drum