Jason Bulmahn
Adventurer
I think it all comes down to how campaign specific Iuz is. Unlike many of the other gods, Iuz actually lives on the plane of Oerth and is a very active force there. Divorcing him from that information strips out a lot of what makes him fun and interesting. Adding him to other campaigns with that information requires a lot of assumtions about that campaign world.
That said, Iuz is probably my favorite Deity. He's a cross between a demon and sorceress, bred for his skills in magic.
Jason Bulmahn
Managing Editor of Dragon
That said, Iuz is probably my favorite Deity. He's a cross between a demon and sorceress, bred for his skills in magic.

Jason Bulmahn
Managing Editor of Dragon