Greninja

Greninja is a dual-type Water/Dark Pokemon. It is the final evolution of Froakie.

Physiology
Greninja, like its previous evolution, has the body style of a frog. In this form, it now resembles Toxicroak and has gained the appearance of a ninja. It is dark blue in color and has its tongue wrapped around its neck like a scarf.

Behavior
It creates throwing stars out of compressed water. When it spins them and throws them at high speed, these stars can split metal in two.

Other Appearances
Greninja appears as a playable character in Super Smash Bros. for Wii U & 3DS.

Trivia

 * Greninja has the highest Speed stat out of all Water-types.
 * Greninja is the first final evolutionary form of a starter Pokemon to be part Dark-type.