M-Diancie & Latios Balanaced - Vegalius

Diancie-Mega @ Diancite
Ability: Clear Body
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Protect
- Moonblast
- Earth Power
- Diamond Storm

Latios @ Soul Dew
Ability: Levitate
EVs: 4 HP / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk / 30 SpA / 30 Spe
- Psyshock
- Draco Meteor
- Hidden Power [Fire]
- Grass Knot

Groudon-Primal @ Red Orb
Ability: Desolate Land
EVs: 248 HP / 8 Atk / 252 SpD
Careful Nature
- Precipice Blades
- Roar
- Lava Plume
- Stealth Rock

Arceus-Ground @ Earth Plate
Ability: Multitype
EVs: 248 HP / 252 Def / 8 SpA
Bold Nature
IVs: 0 Atk
- Defog
- Recover
- Ice Beam
- Judgment

Klefki @ Leftovers
Ability: Prankster
EVs: 248 HP / 8 Atk / 252 SpD
Gentle Nature
- Thunder Wave
- Toxic
- Spikes
- Play Rough

Yveltal @ Leftovers
Ability: Dark Aura
EVs: 248 HP / 252 Def / 8 SpD
Impish Nature
- Foul Play
- Roost
- Sucker Punch
- Taunt