Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 48 HP / 244 Def / 216 Spe  
Bold Nature  
IVs: 0 Atk  
- Dragon Pulse  
- Flamethrower  
- Toxic  
- Recover  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 8 Atk / 252 SpD  
Careful Nature  
- Knock Off  
- Sucker Punch  
- Roost  
- Defog  

Zekrom @ Haban Berry  
Ability: Teravolt  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Bolt Strike  
- Dragon Claw  
- Roost  

Groudon @ Leftovers  
Ability: Drought  
EVs: 84 HP / 252 Atk / 172 Spe  
Adamant Nature  
- Precipice Blades  
- Stone Edge  
- Stealth Rock  
- Rest  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 248 HP / 144 SpD / 116 Spe  
Careful Nature  
- Sunsteel Strike  
- Knock Off  
- Dragon Dance  
- Morning Sun  

Celebi @ Heavy-Duty Boots  
Ability: Natural Cure  
EVs: 248 HP / 76 Def / 184 Spe  
Timid Nature  
- Grass Knot  
- U-turn  
- Recover  
- Heal Bell