Yveltal @ Heavy-Duty Boots
Ability: Dark Aura
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Foul Play
- U-turn
- Defog
- Roost
Blissey (F) @ Utility Umbrella
Ability: Serene Grace
EVs: 252 Def / 4 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Ice Beam
- Confide
- Aromatherapy
- Soft-Boiled
Groudon @ Leftovers
Ability: Drought
EVs: 176 HP / 96 Atk / 180 Def / 56 Spe
Impish Nature
- Precipice Blades
- Stone Edge
- Rock Polish
- Swords Dance
Necrozma-Dusk-Mane @ Rocky Helmet
Ability: Prism Armor
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Earthquake
- Toxic
- Stealth Rock
- Moonlight
Ho-Oh @ Heavy-Duty Boots
Ability: Regenerator
EVs: 252 HP / 84 Atk / 104 Def / 52 SpD / 16 Spe
Impish Nature
- Sacred Fire
- Brave Bird
- Thunder Wave
- Whirlwind
Marshadow @ Choice Band
Ability: Technician
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Poltergeist
- Close Combat
- Spectral Thief
- Shadow Sneak