Diancie-Mega @ Pixie Plate  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Extreme Speed  
- Boomburst  
- V-create  
- Earth Power  

Zygarde-Complete @ Covert Cloak  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Core Enforcer  
- Haze  
- Heal Order  
- Parting Shot  

Gengar-Mega @ Choice Specs  
Ability: Beads of Ruin  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Sludge Wave  
- Moongeist Beam  
- Volt Switch  

Gyarados-Mega @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Fishious Rend  
- Ceaseless Edge  
- U-turn  
- Nuzzle  

Ho-Oh @ Heavy-Duty Boots  
Ability: Ice Scales  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Fire Lash  
- Heal Order  
- Mortal Spin  
- Spectral Thief  

Zacian-Crowned @ Covert Cloak  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Anchor Shot  
- Salt Cure  
- Tidy Up  
- Strength Sap