Shaymin-Sky @ Groundium Z  
Ability: Serene Grace  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Seed Flare  
- Air Slash  
- Earth Power  
- Healing Wish  

Giratina-Origin @ Griseous Orb  
Ability: Levitate  
EVs: 252 Atk / 252 Def / 4 SpD  
Adamant Nature  
- Shadow Sneak  
- Earthquake  
- Stone Edge  
- Defog  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 216 HP / 216 SpA / 76 Spe  
Mild Nature  
- Precipice Blades  
- Overheat  
- Rock Tomb  
- Stealth Rock  

Magearna @ Leftovers  
Ability: Soul-Heart  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Flash Cannon  
- Thunder Wave  
- Heart Swap  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 172 Def / 252 SpA / 84 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Thunder  
- Aromatherapy  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 132 HP / 252 Atk / 124 Spe  
Adamant Nature  
- Swords Dance  
- Earthquake  
- Stone Edge  
- Recover