Blacephalon's Happiest Day V. 1.3

Blacephalon @ Choice Scarf
Ability: Beast Boost
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Fire Blast
- Shadow Ball
- Flamethrower
- Trick

Latios-Mega @ Latiosite
Ability: Levitate
EVs: 4 Atk / 252 SpA / 252 Spe
Naive Nature
- Psychic
- Ice Beam
- Earthquake
- Recover

Heatran (M) @ Grassium Z
Ability: Flash Fire
EVs: 252 HP / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Magma Storm
- Earth Power
- Solar Beam
- Taunt

Clefable (F) @ Leftovers
Ability: Magic Guard
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Stealth Rock
- Moonblast
- Soft-Boiled
- Wish

Gastrodon (F) @ Leftovers
Ability: Storm Drain
EVs: 252 HP / 4 Def / 252 SpD
Sassy Nature
- Scald
- Earthquake
- Recover
- Toxic

Tornadus-Therian @ Rocky Helmet
Ability: Regenerator
EVs: 252 HP / 4 SpA / 252 Spe
Timid Nature
- Hurricane
- Knock Off
- Defog
- U-turn