Rayquaza-Mega @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Searing Sunraze Smash  
- Dragon Ascent  
- Clangorous Soulblaze  
- Menacing Moonraze Maelstrom  

Mewtwo-Mega-X @ Bug Memory  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
IVs: 0 SpA  
- Photon Geyser  
- Sunsteel Strike  
- Multi-Attack  
- Searing Shot  

Regigigas @ Lum Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
IVs: 0 SpA  
- Fake Out  
- Extreme Speed  
- Shell Smash  
- Sunsteel Strike  

Audino-Mega @ Safety Goggles  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- U-turn  
- Stealth Rock  
- Defog  
- Shore Up  

Zygarde-Complete @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 SpA  
- Haze  
- Toxic  
- Shore Up  
- Thousand Waves  

Slowbro-Mega @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Will-O-Wisp  
- Parting Shot  
- Shore Up  
- Scald