Was reading through forums on this guy.
HNM linkshells try taking this guy on and from what I hear, none have won
In fact only once have I heard anyone hurt him. He uses death quite a bit... well enough to wipe your party easily, and can't really be hurt at all. SS I've seen ( ) show he CAN be hurt, but they have no idea how
It spawns Imps and Demons
It can be killed (hence the death dat in AltanaView) but no one knows how yet.
Until then good luck to anyone willing to go up against this guy ^_^