Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 240 HP / 16 Def / 252 Spe  
Jolly Nature  
IVs: 0 Atk  
- Stealth Rock  
- Substitute  
- Endeavor  
- Diamond Storm  

Kommo-o @ Groundium Z  
Ability: Bulletproof  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Close Combat  
- Ice Punch  
- Earthquake  

Serperior @ Rocky Helmet  
Ability: Contrary  
EVs: 208 HP / 48 Def / 252 Spe  
Timid Nature  
- Leaf Storm  
- Taunt  
- Glare  
- Defog  

Magearna @ Assault Vest  
Ability: Soul-Heart  
Hidden Power: Fire  
EVs: 248 HP / 72 Def / 188 SpD  
Calm Nature  
- Fleur Cannon  
- Ice Beam  
- Iron Head  
- Volt Switch  

Volcarona @ Leftovers  
Ability: Swarm  
Hidden Power: Ground  
EVs: 128 HP / 196 SpA / 184 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Quiver Dance  
- Bug Buzz  
- Flamethrower  

Greninja @ Choice Scarf  
Ability: Protean  
EVs: 176 Atk / 80 SpA / 252 Spe  
Hasty Nature  
- Rock Slide  
- U-turn  
- Ice Beam  
- Gunk Shot