Mega Camerupt Trick Room

Synergy

Farigiraf sets Trick Room with Armor Tail preventing priority interference, letting Mega Camerupt fire off Eruption at full HP for massive spread damage. Primarina walls Garchomp with Ice Beam and covers Water weaknesses, while Wyrdeer provides backup Trick Room and extra Intimidate. Incineroar adds Fake Out pressure and Snarl utility. Hydrapple rounds out the team with Regenerator sustain and dragon/grass coverage.

Win Conditions

Get Trick Room up via Farigiraf (Armor Tail blocks Fake Out priority so the setter survives). Then spam Eruption with Mega Camerupt from the slow Trick Room speed advantage for devastating spread damage. Sunny Day further boosts Camerupt and shuts down rain teams.

Lead Options

Camerupt + Farigiraf, Primarina + Farigiraf, Hydrapple + Wyrdeer, Hydrapple + Incineroar

Threats

Rain cores (Paliper + Araquanid can double-target Farigiraf before Trick Room goes up). Charizard and Talonflame are immune to Earth Power and resist Lava Plume/Eruption. Rotom-Wash also resists the main STAB. Bulky Water types generally problematic if Sunny Day is not active.