Mewtwo-Mega-Y @ Shed Shell  
Ability: Wonder Guard  
Shiny: Yes  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Freeze-Dry  
- Secret Sword  
- Earth Power  
- Sludge Bomb  

Mewtwo-Mega-Y @ Shed Shell  
Ability: Wonder Guard  
Shiny: Yes  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Night Daze  
- Sludge Bomb  
- Gastro Acid  

Rotom-Fan @ Leftovers  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Baton Pass  
- Defog  
- Aromatherapy  
- Whirlwind  

Giratina @ Leftovers  
Ability: Magic Bounce  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk / 18 Spe  
- Substitute  
- Baton Pass  
- Curse  
- Milk Drink  

Regigigas @ Silk Scarf  
Ability: Shadow Tag  
EVs: 248 HP / 252 Atk / 8 Spe  
Adamant Nature  
- Fake Out  
- Extreme Speed  
- Sacred Fire  
- Spikes  

Gyarados-Mega @ Lum Berry  
Ability: Huge Power  
Shiny: Yes  
EVs: 248 HP / 252 Atk / 8 Spe  
Adamant Nature  
- Sucker Punch  
- Water Shuriken  
- Pursuit  
- Gastro Acid