Metagross-Mega @ Metagrossite  
Ability: Tough Claws  
Tera Type: Steel  
EVs: 52 HP / 252 Atk / 60 Def / 144 SpD  
Adamant Nature  
- Agility  
- Psychic Fangs  
- Heavy Slam  
- Power-Up Punch  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
Tera Type: Poison  
EVs: 204 Def / 52 SpA / 252 Spe  
Timid Nature  
- Foul Play  
- Oblivion Wing  
- Defog  
- U-turn  

Grimmsnarl @ Light Clay  
Ability: Prankster  
Tera Type: Ghost  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
IVs: 0 Atk  
- Reflect  
- Light Screen  
- Thunder Wave  
- Parting Shot  

Heatran @ Leftovers  
Ability: Flash Fire  
Tera Type: Grass  
EVs: 252 HP / 4 Def / 212 SpD / 40 Spe  
Calm Nature  
IVs: 0 Atk  
- Magma Storm  
- Toxic  
- Earth Power  
- Stealth Rock  

Arceus-Fairy @ Pixie Plate  
Ability: Multitype  
Tera Type: Steel  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
- Calm Mind  
- Judgment  
- Recover  
- Earth Power  

Deoxys-Attack @ Life Orb  
Ability: Pressure  
Tera Type: Normal  
EVs: 4 Atk / 252 SpA / 252 Spe  
Naive Nature  
- Extreme Speed  
- Dark Pulse  
- Superpower  
- Ice Beam