Gengar-Mega @ Gengarite  
Ability: Cursed Body  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Taunt  
- Shadow Ball  
- Sludge Wave  
- Destiny Bond  

Yveltal @ Choice Scarf  
Ability: Dark Aura  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- U-turn  
- Dark Pulse  
- Oblivion Wing  
- Foul Play  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 72 HP / 252 SpA / 100 SpD / 84 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Focus Blast  
- Thunder  
- Moonblast  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 252 SpD / 8 Spe  
Careful Nature  
- Stealth Rock  
- Precipice Blades  
- Stone Edge  
- Roar  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 252 HP / 64 Def / 192 Spe  
Timid Nature  
IVs: 0 Atk  
- Judgment  
- Defog  
- Recover  
- Ice Beam  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 4 Atk / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Toxic  
- Spikes  
- Leech Seed  
- Gyro Ball