Gengar-Mega @ Gengarite  
Ability: Shadow Tag  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hex  
- Will-O-Wisp  
- Sludge Bomb  
- Taunt  

Toxapex @ Shed Shell  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Toxic Spikes  
- Scald  
- Recover  
- Haze  

Giratina-Origin @ Griseous Orb  
Ability: Levitate  
EVs: 4 HP / 252 Def / 252 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Hex  
- Draco Meteor  
- Will-O-Wisp  
- Defog  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 144 HP / 156 Atk / 56 SpD / 152 Spe  
Adamant Nature  
- Stealth Rock  
- Swords Dance  
- Earthquake  
- Stone Edge  

Necrozma-Dusk-Mane @ Solganium Z  
Ability: Prism Armor  
EVs: 108 HP / 252 Atk / 148 Spe  
Adamant Nature  
- Swords Dance  
- Earthquake  
- Sunsteel Strike  
- Morning Sun  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Aromatherapy  
- Defog  
- Thunder Wave