Diancie-Mega @ Diancite  
Ability: Clear Body  
Tera Type: Rock  
EVs: 4 HP / 252 SpA / 252 Spe  
Serious Nature  
- Moonblast  
- Diamond Storm  
- Earth Power  
- Spikes  

Giratina-Origin @ Griseous Core  
Ability: Levitate  
Tera Type: Poison  
EVs: 248 HP / 208 Atk / 52 Spe  
Adamant Nature  
- Shadow Sneak  
- Poltergeist  
- Dragon Tail  
- Thunder Wave  

Lugia @ Heavy-Duty Boots  
Ability: Multiscale  
Tera Type: Fairy  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Aeroblast  
- Ice Beam  
- Whirlwind  
- Recover  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
Tera Type: Ground  
EVs: 248 HP / 68 Def / 192 SpD  
Impish Nature  
- Precipice Blades  
- Rock Tomb  
- Toxic  
- Stealth Rock  

Zygarde @ Leftovers  
Ability: Power Construct  
Tera Type: Fairy  
EVs: 248 HP / 8 Atk / 252 Def  
Impish Nature  
- Thousand Arrows  
- Sleep Talk  
- Rest  
- Coil  

Arceus @ Life Orb  
Ability: Multitype  
Tera Type: Normal  
EVs: 200 HP / 252 Atk / 56 Spe  
- Extreme Speed  
- Shadow Claw  
- Taunt  
- Swords Dance