Genesect

Rising from the ashes of the nuclear fire, the Team Plasma Systems Model 101, Genesect, finally comes to the present! Scizor may be the first thing to come in mind when you think of "Bug / Steel type Pokemon that maintains momentum with U-turn", but Genesect brings a whole new twist on the familiar role thanks to its many unique attributes. Unlike Scizor, Genesect has a good base 99 Speed and an excellent special movepool that, when combined with a Choice Scarf chip, allows Genesect to revenge kill dominant life forms such as Groudon, Mewtwo, Rayquaza, and Darkrai. Skynet's new warrior is also equipped with a top of the line combat ability in Download, which means one of Genesect's attack stats will always be boosted when it switches in. Because of Download, Genesect's above average base 120 attack stats will become the equivalent of a monstrous uninvested 189 base Attack with 0 EVs, and near an even more murderous base fully invested 205 Attack with 252 EVs!

All of Genesect's excellent qualities may make it look like the beginning of the end for humanity, but fortunately for us humans (and unfortunately for Skynet), Genesect doesn't have what it takes to bring forth the apocalypse alone! Genesect's greatest flaw is that unlike Arnold Schwarzenegger, this robotic assassin isn't very durable, with even unboosted Draco Meteors and Life Orb Mewtwo's unboosted Psystrike chipping off over 50% of the insectinator's health, which means that most neutral hits in Ubers will fry Genesect's CPU. Also, because Genesect constantly switches out due to U-turn, the prominence of Stealth Rock and Spikes in Ubers and the difficulty in spinning will quickly wear down Genesect's exoskeleton, making its warranty even shorter than usual. Finally, while Genesect does take advantage of an Attack boost from Download via U-turn, it's a shame that the only other worthwhile physical attacks Genesect has are Iron Head and Explosion. However, once you get past the durability and movepool issues, you're still left with one of the most dangerous U-turn users the game has to offer. So while Genesect may not cause the end of the world as we know it, Genesect, much like the Terminator, is one hell of a lethal machine!