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

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Photon Geyser  
- Earthquake  
- Stone Edge  

Tapu Lele @ Terrain Extender  
Ability: Psychic Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Taunt  
- Magic Coat  
- Moonblast  
- Psychic  

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

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 164 Def / 252 SpA / 92 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Focus Blast  
- Psyshock  

Aerodactyl @ Focus Sash  
Ability: Pressure  
EVs: 252 HP / 4 Atk / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Taunt  
- Rock Slide  
- Defog