Garchomp @ Groundium Z  
Ability: Rough Skin  
EVs: 252 HP / 236 Def / 20 Spe  
Impish Nature  
- Stealth Rock  
- Spikes  
- Earthquake  
- Dragon Tail  

Latias-Mega (F) @ Latiasite  
Ability: Levitate  
EVs: 248 HP / 8 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Recover  
- Defog  
- Ice Beam  
- Thunder Wave  

Hydreigon @ Choice Scarf  
Ability: Levitate  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
- Draco Meteor  
- U-turn  
- Dark Pulse  
- Flamethrower  

Goodra-Hisui @ Leftovers  
Ability: Shell Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Heavy Slam  
- Shelter  
- Knock Off  
- Body Press  

Dragalge @ Heavy-Duty Boots  
Ability: Poison Point  
EVs: 248 HP / 252 Def / 8 SpA  
Bold Nature  
- Scald  
- Sludge Bomb  
- Flip Turn  
- Toxic Spikes  

Dragonite @ Loaded Dice  
Ability: Multiscale  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Scale Shot  
- Earthquake  
- Extreme Speed  
- Dragon Dance