Mega Manectric

Volcarona @ Lum Berry
Ability: Flame Body
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Quiver Dance
- Fire Blast
- Giga Drain
- Bug Buzz

Tyranitar @ Chople Berry
Ability: Sand Stream
EVs: 248 HP / 80 Def / 180 SpD
Relaxed Nature
- Stealth Rock
- Stone Edge
- Pursuit
- Ice Beam

Manectric @ Manectite
Ability: Lightning Rod
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Volt Switch
- Thunderbolt
- Flamethrower
- Hidden Power [Ice]

Latios @ Life Orb
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Draco Meteor
- Roost
- Defog
- Psyshock

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

Excadrill @ Life Orb
Ability: Sand Rush
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Earthquake
- Iron Head
- Rock Slide
- Rapid Spin