[K]

The thing to remember is that the Demon Lords are all endowed with special powers, and as such they all have a weird niche uses.

Take the Lord of the Plague Wind. He walks into battle with a free Storm, and he's immune to it. He has a very high Precision, but he doesn't have a head so you can pop in an Eye of Aiming and it just raises another eight points.

Essentially, if you need to toss down a Hellbind Heart or a Thunder Strike that won't miss, then this is go to guy. If you need a flying strike-force SC who can survive a Wrathful Skies and enemy evokers and still wail on enemies then he's the one.

Add that kind of utility to the fact that each demon lord is a peice of rainbow and opens new magics and summons, they are big noise.