Pokemon's First Appearance: Pokemon Gold, Silver & Crystal

What's great about this half Steel, half Flying Pokemon is that it's almost resistant to every type of attack in the series. Normal? Not a problem. Dragon? Probably won't even leave a scratch. Psychic? Nope. But with such an advantage comes a list of disadvantages. Skarmory's base stat total is low (465) and it doesn't have the ability to learn an assortment of non-damaging and damaging attacks. Plus, its weaknesses are Fire and Electric-type Pokemon and attacks. Yes, Skarmory is strong but it could also be taken down by, say, Ninetales. (Hint, hint.)