Skarmory

Skarmory (Japanese: エアームド Airmd) is a /-type Pokémon introduced in Generation II.

Appearance
Skarmory resembles an ostrich clad in steel armor, with long, sharp-taloned legs and a head that looks like wearing a steel helmet covering its beak. Though not so aerodynamic and seemingly heavy in size, a Skarmory can still fly, which is proved by its ability to use the HM Fly and the fact that it flies during its appearance in the Pokémon Mystery Dungeon: Red and Blue rescue team.

Special Abilities
Skarmory is the only / Pokémon. Its Defense is the highest among all the -Type Pokèmon.

Being a / Pokémon, Skarmory doesn't take heavy damage from and -type moves, which are super-effective against flying types. Being a flying dual-type, it is also more resistant to attacks than a pure-steel.

It is the only Pokémon to learn Steel Wing by leveling up.

Mystery Dungeon series
Skarmory appears as a the first boss in Pokémon Mystery Dungeon: Red Rescue Team & Blue Rescue Team, blaming Diglett and his family because of the recurring earthquakes. He then kidnapped Diglett and brought him to Mt. Steel. If you win, after the battle Skarmory will Fly away and you won't be able to find that Skarmory again.

Evolution
Skamory does not evolve.

Trivia

 * No other Pokémon has the same type combination as Skarmory.
 * Skarmory has the highest Defense of all Flying type Pokémon.