Seismitoad

Seismitoad has an interesting niche in BW OU as an anti-metagame supporter that can stop VoltTurn users such as Rotom-W. Refresh is the move Seismitoad's counterpart, Gastrodon, wishes it had, as blocking Will-O-Wisp is normally enough to prevent VoltTurn teams' progress. Seismitoad is also capable of walling the vast majority of the bulky Water-types in the metagame, making it a valid choice for some sand and rain teams. Its biggest problem is its lack of recovery outside of Leftovers and Rest, since even its good defensive stats are not perfect and switching into the wrong move is normally enough to put Seismitoad into KO range of the biggest OU threats, like Latios, Garchomp, and Alakazam.