Genesect

While Genesect's bizarre appearance might lead one to doubt its offensive prowess, one look at its movepool and base stats should tell you what a big mistake this is. Its high base 120 Special Attack and Attack stats, coupled with access to Download and a plethora of powerful offensive options such as Flamethrower, Ice Beam, Thunderbolt, Bug Buzz, and U-turn, make it a fearsome offensive threat that can run a variety of sets, ranging from Choice Scarf to even Rock Polish. Genesect's Bug / Steel typing gives it a whopping nine resistances and one immunity to go with its decent 71 / 95 / 95 defenses, meaning it gets many opportunities to switch in and wreak havoc. Unfortunately, Game Freak gave Genesect a rage-inducing base 99 Speed, leaving it narrowly outsped by common threats such as Garchomp, Manaphy, and Jirachi. Genesect is also vulnerable to all forms of entry hazards save for Toxic Spikes, and a 4x weakness to Fire-type attacks doesn't help either. Don't let these flaws deter you from using Genesect, however, as this powerful mecha bug can be a great asset to almost any team.