Mega Banette is OU or RU???

Voodoo (Banette-Mega) @ Banettite
Ability: Frisk
EVs: 40 HP / 252 Atk / 216 Spe
Adamant Nature
- Gunk Shot
- Sucker Punch
- Pursuit
- Destiny Bond

Magnet (Magnezone) @ Choice Specs
Ability: Magnet Pull
EVs: 72 HP / 252 SpA / 184 Spe
Modest Nature
- Thunderbolt
- Volt Switch
- Hidden Power [Fire]
- Flash Cannon

Pony (Keldeo) @ Life Orb
Ability: Justified
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Scald
- Secret Sword
- Icy Wind
- Taunt

Landorus-Therian @ Choice Scarf
Ability: Intimidate
EVs: 252 Atk / 24 Def / 232 Spe
Jolly Nature
- Earthquake
- Stone Edge
- U-turn
- Explosion

Puppet (Clefable) @ Leftovers
Ability: Magic Guard
EVs: 252 HP / 172 Def / 84 SpD
Calm Nature
IVs: 0 Atk
- Stealth Rock
- Calm Mind
- Moonblast
- Soft-Boiled

Airplane (Latias) @ Life Orb
Ability: Levitate
EVs: 72 HP / 184 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Draco Meteor
- Psyshock
- Healing Wish
- Defog