Volcarona

With a superb base 135 Special Attack stat, an excellent Speed stat, and potent coverage with its dual STABs, it's hard to see why Volcarona isn't a top-tier threat. However, when thinking of Volcarona's drawbacks, look no further than its typing. While great offensively, Fire- and Bug-types make a poor defensive combination, cursing Volcarona with weaknesses to common spread moves, such as Rock Slide and Surf. It also needs a little team support to get going, as it can otherwise be a sitting duck against sand and rain teams. However, Volcarona's ability to dent and KO common Pokemon, such as Cresselia and Metagross, along with miscellaneous Trick Room users, is valuable in a fast-paced metagame.