Azelf appeared in 2006 video game called Pokémon Diamond & Pearl. Azelf is a Willpower Pokémon. According to legend, Azelf brought a lasting balance to the world. It is known as "The Being of Willpower."
Azelf is a grayish-blue, fairy-like Pokémon. It has two long tails encrusted with two red gems. Azelf has a blue face and another red gem on its forehead, it has a cone-shaped head with a large flat helmet extended on its head and yellow cat-like eyes. Azelf is a gender less Pokémon but it has the appearance of a male.