Ubers team

Klefki @ Light Clay
Ability: Prankster
EVs: 252 HP / 32 Def / 224 SpD
Calm Nature
IVs: 0 Atk
- Toxic
- Spikes
- Foul Play
- Reflect

Landorus-Therian (M) @ Life Orb
Ability: Intimidate
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Explosion
- Stealth Rock
- U-turn
- Earthquake

Such Deer (Xerneas) @ Power Herb
Ability: Fairy Aura
Shiny: Yes
EVs: 104 HP / 28 Def / 252 SpA / 124 Spe
Modest Nature
IVs: 30 Atk / 30 SpA / 30 Spe
- Geomancy
- Moonblast
- Substitute
- Thunder

Arceus @ Life Orb
Ability: Multitype
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- ExtremeSpeed
- Earthquake
- Shadow Claw

Ho-Oh @ Life Orb
Ability: Regenerator
EVs: 252 HP / 108 Atk / 148 SpD
Adamant Nature
- Sacred Fire
- Brave Bird
- Roost
- Thunder Wave

Yveltal @ Life Orb
Ability: Dark Aura
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Dark Pulse
- Oblivion Wing
- Sucker Punch
- U-turn