Thundy + Zard

Thundurus @ Life Orb
Ability: Prankster
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Thunder Wave
- Thunderbolt
- Hidden Power [Ice]
- Focus Blast

Tyranitar @ Choice Band
Ability: Sand Stream
EVs: 44 HP / 252 Atk / 212 Spe
Adamant Nature
- Stone Edge
- Crunch
- Superpower
- Pursuit

Keldeo @ Choice Specs
Ability: Justified
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Scald
- Secret Sword
- Hydro Pump
- Icy Wind

Charizard @ Charizardite Y
Ability: Blaze
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Fire Blast
- Solar Beam
- Focus Blast
- Roost

Latios @ Life Orb
Ability: Levitate
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Draco Meteor
- Psyshock
- Recover
- Defog

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 88 Def / 168 SpD
Relaxed Nature
- Stealth Rock
- Leech Seed
- Gyro Ball
- Power Whip