Slowking @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Grass  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk / 0 Spe  
- Chilly Reception  
- Slack Off  
- Surf  
- Yawn / Trick Room 

Gastrodon-East @ Heavy-Duty Boots  
Ability: Storm Drain  
Tera Type: Steel  
EVs: 252 HP / 240 Def / 16 SpD  
Bold Nature  
IVs: 0 Atk  
- Recover  
- Spikes  
- Surf  
- Icy Wind  

Slither Wing @ Choice Band  
Ability: Protosynthesis  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- U-turn  
- First Impression  
- Close Combat  
- Dual Wingbeat  

Hydreigon @ Heavy-Duty Boots  
Ability: Levitate  
Tera Type: Steel  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Substitute / Draco Meteor  
- Dark Pulse  
- Flash Cannon