Charizard-Mega-Y @ Life Orb  
Ability: Triage  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Tail Glow  
- Oblivion Wing  
- Magma Storm  
- Volt Switch  

Chansey @ Eviolite  
Ability: Imposter  
Happiness: 0  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Metal Burst  
- Whirlwind  
- U-turn  
- Shore Up  

Giratina @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Core Enforcer  
- Haze  
- Shore Up  
- Will-O-Wisp  

Xerneas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Quiver Dance  
- Spikes  
- Strength Sap  

Toxapex @ Black Sludge  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Anchor Shot  
- Shore Up  
- Defog  
- Spectral Thief  

Tyranitar-Mega @ Choice Band  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- U-turn  
- Knock Off  
- Rock Blast  
- Sucker Punch