Mega Slowbro by Someone

Slowbro-Mega @ Slowbronite
Ability: Shell Armor
EVs: 252 HP / 252 SpA / 4 SpD
Modest Nature
- Fire Blast
- Slack Off
- Scald
- Psyshock

Breloom @ Focus Sash
Ability: Technician
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Bullet Seed
- Rock Tomb
- Mach Punch
- Spore

Heatran @ Choice Specs
Ability: Flash Fire
EVs: 248 HP / 252 SpA / 8 Spe
Modest Nature
- Ancient Power
- Earth Power
- Lava Plume
- Flash Cannon

Rotom-Wash @ Leftovers
Ability: Levitate
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
- Volt Switch
- Hydro Pump
- Will-O-Wisp
- Pain Split

Tyranitar @ Chople Berry
Ability: Sand Stream
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Crunch
- Earthquake
- Dragon Dance
- Pursuit

Dragonite @ Lum Berry
Ability: Multiscale
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Dragon Dance
- Extreme Speed
- Fire Punch
- Outrage