Xerneas @ Leppa Berry  
Ability: Innards Out  
EVs: 252 HP / 252 Atk / 252 SpA / 252 Spe  
Mild Nature  
IVs: 0 Def / 0 SpD  
- Shell Smash  
- Searing Sunraze Smash  
- Moonblast  
- Menacing Moonraze Maelstrom  

Sceptile-Mega @ Focus Sash  
Ability: No Guard  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sheer Cold  
- Taunt  
- Spikes  
- Sticky Web  

Kyurem-White @ Focus Sash  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Mild Nature  
- Shell Smash  
- Searing Sunraze Smash  
- Moongeist Beam  
- Freeze-Dry  

Sceptile-Mega @ Focus Sash  
Ability: No Guard  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Fissure  
- Guillotine  
- Taunt  
- Stealth Rock  

Necrozma-Dawn-Wings @ Ultranecrozium Z  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Rash Nature  
- Shell Smash  
- Sunsteel Strike  
- Moongeist Beam  
- Photon Geyser  

Diancie-Mega @ Leppa Berry  
Ability: Pixilate  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Shell Smash  
- Extreme Speed  
- Searing Sunraze Smash  
- Menacing Moonraze Maelstrom