Ho-Oh @ Heavy-Duty Boots
Ability: Fur Coat
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe
Careful Nature
- Fire Lash
- Shore Up
- Haze
- Rapid Spin

Arceus-Poison @ Earth Plate  
Ability: Ice Scales  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Take Heart
- Judgment  
- Mortal Spin  
- Strength Sap

Steelix-Mega @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Gigaton Hammer  
- Stone Axe
- Knock Off  
- U-turn

Mewtwo-Mega-X @ Choice Band
Ability: Sword Of Ruin
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe
Jolly Nature
- Close Combat
- Wicked Blow
- Gigaton Hammer
- U-turn

Diancie-Mega @ Pixie Plate
Ability: Pixilate   
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Boomburst  
- Extreme Speed  
- Precipice Blades 
- Pain Split 

Chansey @ Eviolite
Ability: Imposter
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD
IVs: 0 Atk / 0 Spe
Relaxed Nature
- Shore Up
- Teleport
- Haze
- Heal Bell