Ditto @ Choice Scarf
Ability: Imposter
EVs: 248 HP / 8 Atk / 252 Def
Impish Nature
- Transform
Arceus-Ground @ Earth Plate
Ability: Multitype
EVs: 40 HP / 252 SpA / 216 Spe
Modest Nature
IVs: 0 Atk
- Calm Mind
- Recover
- Ice Beam
- Judgment
Xerneas @ Power Herb
Ability: Fairy Aura
EVs: 80 HP / 4 Def / 252 SpA / 160 Spe
Modest Nature
IVs: 0 Atk
- Geomancy
- Moonblast
- Substitute
- Thunder
Groudon-Primal @ Red Orb
Ability: Desolate Land
EVs: 248 HP / 148 Def / 104 SpD
Relaxed Nature
- Stealth Rock
- Lava Plume
- Dragon Tail
- Toxic
Yveltal @ Heavy-Duty Boots
Ability: Dark Aura
EVs: 248 HP / 8 SpA / 252 SpD
Calm Nature
IVs: 28 Spe
- U-turn
- Snarl
- Roost
- Defog
Marshadow @ Choice Band
Ability: Technician
EVs: 40 HP / 252 Atk / 216 Spe
Jolly Nature
- Spectral Thief
- Pursuit
- Shadow Sneak
- Close Combat