Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 80 HP / 252 Atk / 176 Spe  
Adamant Nature  
- Earthquake  
- Stone Edge  
- Fire Punch  
- Swords Dance  

Deoxys-Attack @ Focus Sash  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psychic  
- Ice Beam  
- Focus Blast  
- Nasty Plot  

Mewtwo-Mega-Y @ Mewtwonite Y  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Ice Beam  
- Fire Blast  
- Calm Mind  

Tapu Lele @ Terrain Extender  
Ability: Psychic Surge  
EVs: 130 HP / 252 SpA / 126 Spe  
Modest Nature  
IVs: 0 Atk  
- Psychic  
- Moonblast  
- Taunt  
- Nature's Madness  

Xerneas @ Power Herb  
Ability: Fairy Aura  
Shiny: Yes  
EVs: 208 HP / 252 SpA / 48 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Thunder  
- Hidden Power [Ground]  

Smeargle @ Focus Sash  
Ability: Own Tempo  
EVs: 252 HP / 4 Atk / 252 Spe  
Jolly Nature  
- Sticky Web  
- Stealth Rock  
- Nuzzle  
- Rapid Spin