jenks
Prince
The Illians could have a lost city resource. They could give a large commerce bonus, repressenting the artifacts found in the ruins, and sold. The Illians alone could find these in an endless expanse of ice. Adding in a few events tied to these ancient lands of civilization would be fun.
I like the idea of more resources like this, or at least benefits in terrain...
Malakim could get +1 food from Oasis
Doviello could get +1 food from Fur and Deer
Illians could have access to an ice resource such as Seals, like Lanun have pearls