Pheromosa @ Focus Sash  
Ability: Mold Breaker  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Spikes  
- Menacing Moonraze Maelstrom  
- Let's Snuggle Forever  
- Spore  

Swampert-Mega @ Safety Goggles  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Spectral Thief  
- Defog  
- Strength Sap  
- Parting Shot  

Mewtwo-Mega-Y @ Leppa Berry  
Ability: Illusion  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Mild Nature  
- Extreme Evoboost  
- Sunsteel Strike  
- Photon Geyser  
- Beat Up  

Yveltal @ Leppa Berry  
Ability: Harvest  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Extreme Evoboost  
- Beat Up  
- Searing Sunraze Smash  
- Heal Order  

Chansey (F) @ Wiki Berry  
Ability: Innards Out  
EVs: 252 HP / 252 SpD / 252 Spe  
Gentle Nature  
IVs: 0 Atk / 0 Def  
- Whirlwind  
- Recover  
- Toxic Spikes  
- Parting Shot  

Lucario-Mega @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Oceanic Operetta  
- Searing Sunraze Smash  
- Let's Snuggle Forever  
- First Impression