Charizard-Mega-Y @ Charizardite Y  
Ability: Blaze  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Flamethrower  
- Solar Beam  
- Focus Blast  
- Defog  

Volcarona @ Sitrus Berry  
Ability: Flame Body  
EVs: 4 HP / 60 Def / 216 SpA / 228 Spe  
Modest Nature  
IVs: 1 Atk / 30 SpA / 30 SpD  
- Fire Blast  
- Giga Drain  
- Hidden Power [Ground]  
- Quiver Dance  

Landorus-Therian (M) @ Rocky Helmet  
Ability: Intimidate  
EVs: 248 HP / 8 Def / 252 Spe  
Jolly Nature  
- Earthquake  
- Stealth Rock  
- U-turn  
- Imprison  

Serperior @ Rocky Helmet  
Ability: Contrary  
EVs: 112 HP / 144 SpA / 252 Spe  
Timid Nature  
IVs: 1 Atk / 30 Def / 30 SpD / 30 Spe  
- Leaf Storm  
- Hidden Power [Rock]  
- Glare  
- Taunt  

Bisharp @ Assault Vest  
Ability: Defiant  
EVs: 248 HP / 248 Atk / 12 Spe  
Adamant Nature  
- Knock Off  
- Iron Head  
- Sucker Punch  
- Pursuit  

Latias (F) @ Choice Scarf  
Ability: Levitate  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psyshock  
- Trick  
- Defog  
- Healing Wish