Along with a luck site maybe also add luck units?
Possibly a pretender with major luck boost and major dominion?
Or even make all of that nations clerics be luck boosting.
Could be an interesting turtling nation
Hmm well here's a concept, much like a blood-economy where one has to choose between cash or slaves why not an incubator economy where one has to choose between expensive capital only immobile commander recruits that generates 1 gem/turn for something like 600g & 90g/turn. It'll certainly add flexibility .