Charizard-Mega-Y @ Charizardite Y  
Ability: Blaze  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Fire Blast  
- Solar Beam  
- Scorching Sands  
- Roost  

Dragonite @ Heavy-Duty Boots  
Ability: Multiscale  
EVs: 248 HP / 252 SpD / 8 Spe  
Sassy Nature  
- Ice Beam  
- Earthquake  
- Defog  
- Roost  

Kartana @ Grassium Z  
Ability: Beast Boost  
EVs: 136 HP / 120 Def / 252 Spe  
Jolly Nature  
- Leaf Blade  
- Sacred Sword  
- Defog  
- Synthesis  

Weavile @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Triple Axel  
- Knock Off  
- Ice Shard  

Gastrodon @ Leftovers  
Ability: Storm Drain  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Scald  
- Earth Power  
- Recover  
- Toxic  

Victini @ Choice Scarf  
Ability: Victory Star  
EVs: 252 HP / 4 SpD / 252 Spe  
Jolly Nature  
- V-create  
- U-turn  
- Trick  
- Final Gambit