Calyrex-Shadow @ Choice Scarf  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psyshock  
- Trick  
- Aromatherapy  

Groudon @ Leftovers  
Ability: Drought  
EVs: 240 HP / 208 Def / 44 SpD / 16 Spe  
Impish Nature  
- Precipice Blades  
- Stone Edge  
- Toxic  
- Rest  

Necrozma-Da-Vinki (Necrozma-Dusk-Mane) @ Choice Band  
Ability: Prism Armor  
EVs: 52 HP / 252 Atk / 204 Spe  
Adamant Nature  
- Sunsteel Strike  
- Stone Edge  
- Earthquake  
- Knock Off  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 160 HP / 252 SpD / 96 Spe  
Timid Nature  
IVs: 0 Atk  
- Dragon Pulse  
- Cosmic Power  
- Meteor Beam  
- Recover  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 56 HP / 72 Atk / 196 SpD / 184 Spe  
Jolly Nature  
- Knock Off  
- U-turn  
- Defog  
- Roost  

Tangrowth @ Rocky Helmet  
Ability: Regenerator  
EVs: 232 HP / 232 Def / 44 SpA  
Relaxed Nature  
- Grass Knot  
- Earthquake  
- Sleep Powder  
- Stun Spore