Rayquaza-Mega @ Firium Z
Ability: Triage
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Oblivion Wing
- Spore
- Tail Glow
- Eruption

Marshadow @ Leftovers
Ability: Contrary
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe
Impish Nature
- Superpower
- Spirit Shackle
- V-create
- Recover

Magearna @ Focus Sash
Ability: Prankster
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe
Calm Nature
IVs: 0 Atk
- Spore
- Stealth Rock
- Spikes
- Memento

Greninja-Ash (M) @ Choice Specs
Ability: Primordial Sea
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Steam Eruption
- Thunder
- Hydro Pump
- Dark Pulse

Charizard-Mega-X @ Choice Band
Ability: Desolate Land
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe
Jolly Nature
- V-create
- Dragon Hammer
- U-turn
- Earthquake

Diancie-Mega @ Focus Sash
Ability: Magic Guard
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe
Lonely Nature
- Moonblast
- Shell Smash
- Head Smash
- Wood Hammer