Sigilyph

Behold the mighty Aztec Bird, known for its power to annoy the living hell out of every challenger who dares to oppose it. Unless your team has some extremely hard hitters, or a Dark-type, it will be nigh impossible to stop Sigilyph. This is thanks to its great typing, movepool, and stats that go hand-in-hand with its ability, Magic Guard. Its typing provides it with an invaluable quadruple resistance to the growing population of Fighting-type moves and a nifty immunity to Ground-type attacks; this allows Sigilyph to gain plenty of switch-in opportunities and wall a number of dangerous UU Pokemon. Its movepool contains a reliable recovery move in Roost; boosting moves, such as Calm Mind and Cosmic Power; and many coverage options, such as Heat Wave and Ice Beam. It is commonly seen running the classic bulky sweeper set, which is known for making its opponents bald as they rip their hair out in pure frustration. It can also run the most durable offensive set of its kind that performs just as well. Its ability, Magic Guard, is really what makes Sigilyph a Pokemon worth writing home about, as an immunity to common forms of passive damage, such as Toxic and Stealth Rock, is extremely helpful and what makes Sigilyph so difficult to break past.

At this point, you might be wondering why is Sigilyph not banned to Ubers; the reason lies in the fact that common Pokemon aren't really forced out by it, especially specially offensive Pokemon that can hit it hard, such as Raikou, Zapdos, and Zoroark. Dark-types are also the bane of almost all Sigilyph. Phazing is another strategy Sigilyph hates to face, as it comes into the field wanting to stay there for a long time before either fainting or switching out. However, you should never underestimate Sigilyph unless you would like it to sweep you.