Cthulhu R'lyeh Wgah'nagl Fhtagn, Lä! Lä!

[Psitticine]

Ulm has the Iron Faith dominion theme. In it, their fear of magic has gone so far as to cause even their master smiths to abandon its use. An Inquisition has formed and the only magic is in its hands, to be used exclusively for fighting heretics, of course.

You lose the Master Smiths, but you gain knights and magic-weilding units. It's a nice variant. Sort of like Ulm-meets-Marignon.