Calyrex-Shadow @ Ghostium Z  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Substitute  
- Nasty Plot  
- Baton Pass  

Tyranitar-Mega @ Tyranitarite  
Ability: Sand Stream  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Rock Tomb  
- Foul Play  
- Pursuit  
- Thunder Wave  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 140 HP / 252 Atk / 116 SpD  
Adamant Nature  
- Rock Tomb  
- Precipice Blades  
- Stealth Rock  
- Fire Punch  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 200 Def / 56 SpD  
Impish Nature  
- Defog  
- Toxic  
- Whirlwind  
- Sacred Fire  

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Substitute  
- Dragon Dance  
- Rest  
- Thousand Arrows  

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 180 HP / 208 Atk / 120 SpD  
Brave Nature  
- Trick Room  
- Stone Edge  
- Sunsteel Strike  
- Earthquake