Marshadow @ Marshadium Z  
Ability: Technician  
Tera Type: Fighting  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Substitute  
- Bulk Up  
- Spectral Thief  
- Low Kick  

Yveltal @ Choice Band  
Ability: Dark Aura  
Tera Type: Dark  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Foul Play  
- U-turn  
- Sucker Punch  
- Knock Off  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Fire  
EVs: 240 HP / 16 Atk / 88 Def / 148 SpD / 16 Spe  
Careful Nature  
- Sacred Fire  
- Thunder Wave  
- Brave Bird  
- Whirlwind  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
Shiny: Yes  
Tera Type: Ground  
EVs: 248 HP / 56 Def / 188 SpD / 16 Spe  
Impish Nature  
- Precipice Blades  
- Roar  
- Toxic  
- Stealth Rock  

Latias-Mega (F) @ Latiasite  
Ability: Levitate  
Tera Type: Dragon  
EVs: 248 HP / 80 Def / 4 SpD / 176 Spe  
Timid Nature  
IVs: 0 Atk  
- Roost  
- Draco Meteor  
- Defog  
- Psywave  

Eternatus @ Sitrus Berry  
Ability: Pressure  
Tera Type: Fairy  
EVs: 248 HP / 44 SpD / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Toxic  
- Recover  
- Mystical Fire