Mewtwo-Mega-X @ Mewtwonite X  
Ability: Steadfast  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Taunt  
- Stone Edge  
- Low Kick  
- Ice Punch  

Necrozma-Dusk-Mane @ Solganium Z  
Ability: Prism Armor  
EVs: 136 HP / 252 Atk / 120 Spe  
Adamant Nature  
- Swords Dance  
- Autotomize  
- Sunsteel Strike  
- Earthquake  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 124 HP / 252 SpA / 132 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Aromatherapy  
- Endeavor  
- Thunder Wave  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 144 Def / 112 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Toxic  
- Defog  
- Recover  

Yveltal @ Leftovers  
Ability: Dark Aura  
EVs: 200 HP / 124 Def / 184 Spe  
Impish Nature  
IVs: 0 Atk  
- Foul Play  
- Toxic  
- Roost  
- Taunt  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Hone Claws  
- Rock Polish  
- Precipice Blades  
- Stone Edge