Event Horizon (Dialga) @ Steelium Z  
Ability: Teravolt  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
- Doom Desire  
- Toxic Spikes  
- Strength Sap  
- Dragon Tail  

Apollo 13 (Mewtwo-Mega-Y) @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psystrike  
- Moonblast  
- Earth Power  
- Taunt  

Honest Man's Death (Kyogre-Primal) @ Rocky Helmet  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Anchor Shot  
- Spectral Thief  
- Heal Order  
- Refresh  

Illusion Seeker (Sableye-Mega) @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- U-turn  
- Spiky Shield  
- Knock Off  
- Will-O-Wisp  

Buddhist Diamond (Steelix-Mega) @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Entrainment  
- Haze  
- Recover  
- Anchor Shot  

Meteors On Earth (Yveltal) @ Wiki Berry  
Ability: Triage  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Mild Nature  
- Oblivion Wing  
- Revelation Dance  
- Pursuit  
- Spikes