Charizard-Mega-Y @ Charizardite Y  
Ability: Blaze  
EVs: 248 HP / 108 Def / 72 SpA / 80 Spe  
Quiet Nature  
IVs: 0 Atk  
- Weather Ball  
- Roost  
- Focus Blast  
- Scorching Sands  

Hydreigon @ Rocky Helmet  
Ability: Levitate  
EVs: 48 HP / 228 SpA / 232 Spe  
Timid Nature  
IVs: 0 Atk  
- Dark Pulse  
- Defog  
- Roost  
- Taunt  

Heatran @ Leftovers  
Ability: Flash Fire  
EVs: 248 HP / 52 SpA / 160 SpD / 48 Spe  
Calm Nature  
IVs: 0 Atk  
- Magma Storm  
- Stealth Rock  
- Earth Power  
- Toxic  

Rillaboom @ Choice Band  
Ability: Grassy Surge  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Grassy Glide  
- Superpower  
- U-turn  
- Wood Hammer  

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

Landorus-Therian @ Groundium Z  
Ability: Intimidate  
EVs: 248 HP / 4 Atk / 40 SpA / 216 Spe  
Adamant Nature  
- Earthquake  
- Weather Ball  
- U-turn  
- Hidden Power [Ice]