Pikachu

Pikachu: the hero of Pokemon, keeping the world safe from Team Rocket. Its base 90 Speed, as well as its other stats, all of which are below 55, aren't very appealing, as they make Pikachu very susceptible to being KOed by both priority moves and faster Pokemon, such as Garchomp. However, its signature item—Light Ball—gives Pikachu some much-needed attacking power, allowing it to nab some nifty KOs on weakened Pokemon. Even with the attacking power it receives, though, Pikachu still needs lots of team support to actually hurt the opposing team; therefore it enjoys team support from sleep inducers, Icy Wind spammers, and Tailwind users. Pikachu can wreck the opponent if played right, but make any mistake with it and you're done for.