Builder: NJNP

Charizard-Mega-Y @ Charizardite Y
Ability: Drought
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
IVs: 1 Atk / 30 Def / 30 SpD / 30 Spe
- Flamethrower
- Hidden Power [Rock]
- Solar Beam
- Focus Blast

Volcanion @ Leftovers
Ability: Water Absorb
EVs: 40 HP / 252 SpA / 216 Spe
Modest Nature
IVs: 0 Atk
- Toxic
- Steam Eruption
- Protect
- Flamethrower

Tyranitar @ Choice Scarf
Ability: Sand Stream
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Crunch
- Stone Edge
- Ice Beam
- Pursuit

Amoonguss @ Leftovers
Ability: Regenerator
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Clear Smog
- Giga Drain
- Spore
- Stun Spore

Excadrill @ Air Balloon
Ability: Sand Rush
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Rapid Spin
- Iron Head
- Earthquake
- Swords Dance

Garchomp @ Rocky Helmet
Ability: Rough Skin
EVs: 252 HP / 164 Def / 92 Spe
Impish Nature
- Earthquake
- Dragon Tail
- Stealth Rock
- Toxic