Greninja and Mega Charizard X battling HD Wallpaper

Greninja, a bipedal frog-like Pokémon, is shown on the left, preparing to throw a large, glowing shuriken. On the right, Mega Charizard X, a large dragon-like Pokémon, is roaring with green energy emanating from its mouth and blue flames on its tail. The background is a dark, cloudy sky.