Tyranitar-Mega @ Leppa Berry  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Destiny Bond  
- Light That Burns the Sky  
- Pursuit  
- Strength Sap  

Mewtwo-Mega-X @ Leppa Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- V-create  
- Light That Burns the Sky  
- Shadow Sneak  
- Sunsteel Strike  

Giratina-Origin @ Leppa Berry  
Ability: Harvest  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Quiet Nature  
- Searing Sunraze Smash  
- Menacing Moonraze Maelstrom  
- Clangorous Soulblaze  
- Extreme Evoboost  

Gyarados-Mega @ Leppa Berry  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Baton Pass  
- Spectral Thief  
- Searing Sunraze Smash  
- Strength Sap  

Mewtwo-Mega-Y @ Life Orb  
Ability: Protean  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Sunsteel Strike  
- Steam Eruption  
- Moongeist Beam  
- Shell Smash  

Deoxys-Attack @ Focus Sash  
Ability: No Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Menacing Moonraze Maelstrom  
- Fissure  
- Light That Burns the Sky  
- Searing Sunraze Smash