Alomomola @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Fairy  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Spe  
- Wish  
- Protect  
- Toxic  
- Flip Turn  

Arceus-Poison @ Toxic Plate  
Ability: Multitype  
Tera Type: Water  
EVs: 252 HP / 8 Atk / 232 SpD / 16 Spe  
Jolly Nature  
- Poison Jab  
- Recover  
- Stealth Rock  
- Taunt  

Latias-Mega (F) @ Latiasite  
Ability: Levitate  
Tera Type: Dragon  
EVs: 252 HP / 160 Def / 96 Spe  
Timid Nature  
IVs: 0 Atk  
- Roost  
- Toxic  
- Defog  
- Refresh  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
Tera Type: Water  
EVs: 252 HP / 72 Def / 184 Spe  
Timid Nature  
IVs: 0 Atk  
- Foul Play  
- Roost  
- Taunt  
- Toxic  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Grass  
EVs: 248 HP / 208 Def / 52 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Whirlwind  

Rayquaza @ Choice Band  
Ability: Air Lock  
Tera Type: Flying  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Ascent  
- V-create  
- Extreme Speed  
- U-turn