Giratina-Origin @ Griseous Core  
Ability: Levitate  
Tera Type: Steel  
EVs: 252 HP / 4 Atk / 252 SpD  
Serious Nature  
- Curse  
- Iron Head  
- Dragon Tail  

Heatran  
Ability: Flash Fire  
Tera Type: Fire  
IVs: 0 Atk  

Houndstone  
Ability: Fluffy  
Tera Type: Ghost  
IVs: 0 Atk  

Meowscarada  
Ability: Protean  
Tera Type: Grass  
Serious Nature  
- Trick Room  
- Spikes  
- U-turn  
- Taunt