Qwilfish

Qwilfish occupies a very specialized niche in the UU metagame: it has the unique capability to check both Fire- and Fighting-type physical attackers that can run through teams with their powerful STAB attacks. True to its thorny exterior, Qwilfish can also lay down Spikes to break down opposing teams, making it one of the best utility Pokemon in the tier. One of the Balloon Pokemon's biggest weaknesses was remedied in BW2, as Intimidate and Pain Split are compatible on a single set, allowing Qwilfish to both cushion the physical attacks it switches into and recover its health fairly reliably. However, with its horrid Special Defense, Qwilfish can be struck down by most neutral or super effective special attacks. Combined with unfortunate weaknesses to Ground-, Electric-, and Psychic-type attacks, Qwilfish is by no means an unbreakable defensive threat. Still, if played to its strengths, Qwilfish makes a great check to many dangerous threats and a superb team supporter.