'The Big 6'

Xerneas @ Power Herb
Ability: Fairy Aura
Level: 50
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Geomancy
- Dazzling Gleam
- Moonblast
- Protect

Groudon-Primal @ Red Orb
Ability: Desolate Land
Level: 50
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Eruption
- Earth Power
- Flamethrower
- Protect

Smeargle @ Focus Sash
Ability: Moody
Level: 50
EVs: 252 HP / 4 Def / 252 Spe
Timid Nature
- Follow Me
- Fake Out
- Dark Void
- Spiky Shield

Kangaskhan-Mega (F) @ Kangaskhanite
Ability: Inner Focus
Level: 50
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Fake Out
- Double-Edge
- Sucker Punch
- Low Kick

Salamence-Mega @ Salamencite
Ability: Intimidate
Level: 50
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
- Double-Edge
- Draco Meteor
- Hyper Voice
- Protect

Talonflame @ Life Orb
Ability: Gale Wings
Level: 50
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Brave Bird
- Flare Blitz
- Tailwind
- Quick Guard