Aegislash

Shield Forme=

Blade Forme= Aegislash is an /-type Pokémon that was first introduced in Generation VI.

Physiology
Aegislash is a single sword, unlike its pre-evolution, that is slightly golden in color and has a strange jagged blade edge, it has a single purple eye with a white pupil and no sheath but instead a rather large shield with circle patterns on it being held by its "arms", which are purple cloth.

Special Abilities
It can learn the move Swords Dance and Sacred Sword, like Doublade and Honedge. Its signature abilitiy is Stance Change.

Evolution
Aegislash is the evolved form of Doublade and the final form of Honedge. It can be evolved from Doublade by using a Dusk Stone.

Aegislash's name is most likely derived from the words "aegis" which means shield and "slash".

Trivia

 * Aegislash, along with its pre-evolutions, is the only Pokémon with / unique match up.
 * Aegislash and Tyrantrum are both Pokemon designed by Hitoshi Ariga.