Mewtwo X Team

Mewthree (Mewtwo) @ Mewtwonite X
Ability: Pressure
Shiny: Yes
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Low Kick
- Taunt
- Ice Punch
- Iron Tail

Such Horn (Xerneas) @ Power Herb
Ability: Fairy Aura
Shiny: Yes
EVs: 184 HP / 28 Def / 252 SpA / 44 Spe
Timid Nature
IVs: 30 SpA / 30 SpD
- Geomancy
- Moonblast
- Aromatherapy
- Thunder

So Normal (Arceus) @ Life Orb
Ability: Multitype
Shiny: Yes
EVs: 4 HP / 252 Def / 252 Spe
Jolly Nature
- Swords Dance
- Extreme Speed
- Shadow Claw
- Earthquake

Jurrac Giganoto (Groudon) @ Red Orb
Ability: Drought
Shiny: Yes
EVs: 248 HP / 44 Def / 184 SpD / 32 Spe
Adamant Nature
- Earthquake
- Fire Punch
- Stealth Rock
- Roar

I Like Souls (Giratina-Origin) @ Griseous Orb
Ability: Levitate
Shiny: Yes
EVs: 248 HP / 252 Def / 8 Atk
Relaxed Nature
- Dragon Tail
- Toxic
- Shadow Sneak
- Defog

Pimp Chain (Klefki) (F) @ Leftovers
Ability: Prankster
Shiny: Yes
EVs: 248 HP / 8 Atk / 252 SpD
Careful Nature
- Spikes
- Thunder Wave
- Toxic
- Play Rough