Darkrai luck based

Deoxys-Speed @ Focus Sash
Ability: Pressure
EVs: 248 HP / 8 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Taunt
- Psycho Boost
- Stealth Rock
- Gravity

Xerneas @ Power Herb
Ability: Fairy Aura
EVs: 148 HP / 252 SpA / 108 Spe
Modest Nature
IVs: 0 Atk
- Moonblast
- Thunder
- Geomancy
- Focus Blast

Arceus @ Leftovers
Ability: Multitype
EVs: 160 HP / 252 Atk / 98 Spe
Naughty Nature
- Swords Dance
- Substitute
- Extreme Speed
- Shadow Claw

Shaymin-Sky @ Choice Scarf
Ability: Serene Grace
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Air Slash
- Seed Flare
- Healing Wish
- Aromatherapy

Darkrai @ Focus Sash
Ability: Bad Dreams
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Hypnosis
- Nasty Plot
- Dark Pulse
- Sludge Bomb

Giratina-Origin @ Griseous Orb
Ability: Levitate
EVs: 248 HP / 252 SpA / 8 SpD
Modest Nature
IVs: 0 Atk
- Rest
- Dragon Breath
- Hex
- Defog