DUbers: Celebration Time!

Ho-Oh @ Normalium Z
Ability: Pressure
Shiny: Yes
EVs: 248 HP / 4 Atk / 136 Def / 16 SpD / 104 Spe
Adamant Nature
- Sacred Fire
- Brave Bird
- Recover
- Celebrate

Groudon-Primal @ Red Orb
Ability: Desolate Land
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Eruption
- Earth Power
- Flamethrower
- Protect

Rayquaza-Mega @ Focus Sash
Ability: Delta Stream
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Dragon Ascent
- Extreme Speed
- Swords Dance
- Protect

Mew @ Leftovers
Ability: Synchronize
EVs: 252 HP / 160 Def / 96 SpD
Calm Nature
- Icy Wind
- Transform
- Roar
- Fake Out

Xerneas @ Power Herb
Ability: Fairy Aura
EVs: 240 HP / 120 Def / 108 SpA / 24 SpD / 16 Spe
Modest Nature
IVs: 0 Atk
- Dazzling Gleam
- Moonblast
- Geomancy
- Protect

Arceus @ Figy Berry
Ability: Multitype
EVs: 236 HP / 64 Atk / 156 Def / 48 SpD / 4 Spe
Adamant Nature
- Extreme Speed
- Snarl
- Tailwind
- Protect