Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 244 HP / 12 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Stealth Rock  
- Moonblast  
- Endeavor  

Cresselia (F) @ Mental Herb  
Ability: Levitate  
EVs: 252 HP / 136 Def / 120 SpD  
Bold Nature  
IVs: 0 Atk  
- Thunder Wave  
- Ice Beam  
- Skill Swap  
- Lunar Dance  

Magearna @ Fairium Z  
Ability: Soul-Heart  
EVs: 52 HP / 204 SpA / 16 SpD / 236 Spe  
Timid Nature  
IVs: 0 Atk  
- Shift Gear  
- Calm Mind  
- Fleur Cannon  
- Aura Sphere  

Serperior (M) @ Rocky Helmet  
Ability: Contrary  
EVs: 248 HP / 20 Def / 8 SpD / 232 Spe  
Timid Nature  
IVs: 0 Atk  
- Taunt  
- Leaf Storm  
- Glare  
- Defog  

Suicune @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 40 SpD / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Calm Mind  
- Scald  
- Protect  

Volcarona (M) @ Leftovers  
Ability: Swarm  
EVs: 112 HP / 212 SpA / 184 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Quiver Dance  
- Flamethrower  
- Bug Buzz