Rhyperior

Brave nature lowers Speed to minimum. Under Trick Room the slowest Pokémon moves first, and Rhyperior's naturally low Speed with Brave nature puts it at the front of every Trick Room turn. Solid Rock reduces super-effective damage taken, allowing Rhyperior to survive Water and Grass hits that would otherwise OHKO. White Herb absorbs one stat drop including Intimidate's Attack reduction. Rock Slide spreads flinch damage against both opponents. High Horsepower is reliable Ground STAB. Earthquake provides the spread Ground alternative. Maxed HP and Attack with Solid Rock creates an enormous, nearly unstoppable physical sweeper under Trick Room.