Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 252 SpA / 4 SpD / 252 Spe  
Hasty Nature  
- Moonblast  
- Diamond Storm  
- Earth Power  
- Protect  

Volcarona @ Psychium Z  
Ability: Flame Body  
EVs: 248 HP / 112 Def / 148 Spe  
Timid Nature  
IVs: 0 Atk  
- Quiver Dance  
- Flamethrower  
- Psychic  
- Roost  

Landorus-Therian @ Choice Scarf  
Ability: Intimidate  
EVs: 232 Atk / 68 Def / 208 Spe  
Jolly Nature  
- Earthquake  
- U-turn  
- Stone Edge  
- Defog  

Kommo-o @ Leftovers  
Ability: Bulletproof  
EVs: 252 HP / 116 SpD / 140 Spe  
Careful Nature  
- Stealth Rock  
- Toxic  
- Protect  
- Drain Punch  

Rotom-Wash @ Leftovers  
Ability: Levitate  
EVs: 252 HP / 200 Def / 56 Spe  
Bold Nature  
- Hydro Pump  
- Volt Switch  
- Will-O-Wisp  
- Pain Split  

Magearna @ Wiki Berry  
Ability: Soul-Heart  
EVs: 248 HP / 28 Def / 224 SpA / 8 SpD  
Modest Nature  
- Calm Mind  
- Pain Split  
- Fleur Cannon  
- Thunderbolt