This is Azurian, Yoris most powerful "Pet"(never call it "Pet" or you are in for a world of hurt).
This creature was created by an ancient and incredible sinister Ritual of Chaos, it is even said that Azurian has
a black hole as a heart but noone believes it, as who would be THAT insane?
Because of that, it has the rare anti-chicken power, that severely damages the target especially immortal ones.
While it could technically beat even Niku, it rather uses it's power to destroy planets, hence the title Planetcrusher.
Other than that Azurian is rather easygoing and while it totally obeys Yori,
it may look for some so-called FUN...
(This pet is a member of the World Destruction Force)