Ho-Oh @ Life Orb  
Ability: Magic Guard  
Tera Type: Fire  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Adamant Nature  
- Flare Blitz  
- Brave Bird  
- Tidy Up  
- Strength Sap  

Arceus-Ghost @ Spooky Plate  
Ability: Simple  
Tera Type: Ghost  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- No Retreat  
- Judgment  
- Triple Arrows  
- Jungle Healing  

Diancie-Mega @ Pixie Plate  
Ability: Pixilate  
Tera Type: Rock  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Boomburst  
- Revelation Dance  
- Volt Switch  
- Extreme Speed  

Chansey @ Eviolite  
Ability: Imposter  
Tera Type: Normal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Shore Up  
- Parting Shot  
- Haze  
- Heal Bell  

Dialga-Origin @ Adamant Crystal  
Ability: Ice Scales  
Tera Type: Fairy  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Make It Rain  
- Toxic  
- Parting Shot  
- Recover  

Yveltal @ Heavy-Duty Boots  
Ability: Fur Coat  
Tera Type: Dark  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Impish Nature  
- Knock Off  
- Strength Sap  
- Haze  
- Mortal Spin