Necrozma-Dusk-Mane @ Focus Sash  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Stealth Rock  
- Defog  
- Sunsteel Strike  
- Destiny Bond  

Hoopa-Unbound @ Focus Sash  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
- Shell Smash  
- Photon Geyser  
- Moonblast  
- Power Trip  

Groudon-Primal @ Focus Sash  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Bonemerang  
- Sunsteel Strike  
- Ice Punch  

Diancie-Mega @ Focus Sash  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Shell Smash  
- Sunsteel Strike  
- Moongeist Beam  
- Extreme Speed  

Mewtwo-Mega-Y @ Life Orb  
Ability: Magic Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
- Spore  
- Photon Geyser  
- Light of Ruin  
- Mind Blown  

Kartana @ Focus Sash  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Sunsteel Strike  
- Power Whip  
- Spectral Thief