nocturne (Houndoom-Mega) @ Charcoal  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
- Shell Smash  
- Photon Geyser  
- Blue Flare  
- Hidden Power [Water]  

disassociate (Yveltal) @ Lum Berry  
Ability: Huge Power  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Light That Burns the Sky  
- V-create  
- Beat Up  

aphelian sanctuary (Mewtwo-Mega-X) @ Choice Scarf  
Ability: Parental Bond  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Photon Geyser  
- Fleur Cannon  
- Searing Shot  
- Megahorn  

the bog (Swampert-Mega) @ Safety Goggles  
Ability: Wonder Guard  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Strength Sap  
- Whirlwind  
- Stealth Rock  
- U-turn  

lobster platter (Groudon-Primal) @ Shed Shell  
Ability: Huge Power  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Sunsteel Strike  
- Sacred Fire  
- Bonemerang  

unravel (Blissey) (F) @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Whirlwind  
- Perish Song  
- Baton Pass