Gengar-Mega @ Focus Sash  
Ability: No Guard  
EVs: 252 HP / 252 Atk / 252 Def / 200 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Fissure  
- Moongeist Beam  
- Sing  
- Shell Smash  

Slowbro-Mega @ Aguav Berry  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Substitute  
- Magic Coat  
- Baton Pass  
- Defog  

Mewtwo-Mega-Y @ Lum Berry  
Ability: Innards Out  
EVs: 252 HP / 252 Spe  
Hasty Nature  
IVs: 0 Atk / 0 SpD  
- Stealth Rock  
- Taunt  
- Spore  
- Sticky Web  

Zygarde-Complete @ Icium Z  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Baton Pass  
- Haze  
- Destiny Bond  
- Encore  

Deoxys-Speed @ Choice Scarf  
Ability: No Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Fissure  
- Sheer Cold  
- Gastro Acid  
- Trick  

Blissey @ Aguav Berry  
Ability: Innards Out  
EVs: 252 HP / 252 SpD / 252 Spe  
Hasty Nature  
IVs: 0 Atk / 0 Def  
- Magic Coat  
- Soft-Boiled  
- Encore  
- Parting Shot