Hoopa-Unbound @ Psychium Z  
Ability: Magician  
EVs: 248 HP / 252 Atk / 8 SpD  
Brave Nature  
IVs: 0 Spe  
- Zen Headbutt  
- Hyperspace Fury  
- Destiny Bond  
- Trick Room  

Camerupt-Mega @ Life Orb  
Ability: Sheer Force  
EVs: 252 HP / 252 SpA / 4 SpD  
Quiet Nature  
IVs: 0 Atk  
- Earth Power  
- Fire Blast  
- Ancient Power  
- Hidden Power [Ice]  

Magearna @ Shuca Berry  
Ability: Soul-Heart  
EVs: 252 HP / 252 SpA / 4 SpD  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Fleur Cannon  
- Flash Cannon  
- Trick Room  
- Volt Switch  

Arceus-Dragon @ Draco Plate  
Ability: Multitype  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Trick Room  
- Judgment  
- Defog  
- Recover  

Tyranitar-Mega @ Choice Band  
Ability: Sand Stream  
EVs: 248 HP / 252 Atk / 8 SpD  
Brave Nature  
IVs: 0 Spe  
- Stone Edge  
- Crunch  
- Earthquake  
- Pursuit  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 64 Def / 196 SpD  
Sassy Nature  
IVs: 0 Spe  
- Stealth Rock  
- Precipice Blades  
- Lava Plume  
- Toxic