Marshadow @ Choice Band
Ability: Technician
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Poltergeist
- Spectral Thief
- Close Combat
- Shadow Sneak
Groudon @ Leftovers
Ability: Drought
EVs: 248 HP / 224 Def / 36 Spe
Impish Nature
- Precipice Blades
- Stealth Rock
- Toxic
- Stone Edge
Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 248 HP / 8 Atk / 252 Def
Impish Nature
IVs: 0 Atk
- Body Press
- Iron Defense
- Spikes
- Leech Seed
Yveltal @ Heavy-Duty Boots
Ability: Dark Aura
EVs: 16 HP / 240 SpD / 252 Spe
Timid Nature
- Knock Off
- U-turn
- Roost
- Defog
Necrozma-Dusk-Mane @ Rocky Helmet
Ability: Prism Armor
EVs: 248 HP / 136 Def / 120 Spe
Impish Nature
- Dragon Dance
- Sunsteel Strike
- Earthquake
- Morning Sun
Blissey (F) @ Utility Umbrella
Ability: Natural Cure
EVs: 4 HP / 252 Def / 252 SpD
Sassy Nature
IVs: 0 Atk
- Seismic Toss
- Aromatherapy
- Soft-Boiled
- Teleport