Yveltal

Yveltal is a dual-type Dark/Flying Pokemon. It represents destruction and is the Version Mascot of Pokemon Y. It has a signature move, Oblivion Wing.

Physiology
As a bird based Pokémon,it has huge flaps that are red colored internally and black colored externally .When Yveltal straightens its arms in flight, it f and that's why the game is called Pokémon Y

Behavior
Yveltal represents destruction, so it seems to be an angry Pokémon.