I will try my hand at the resources each element has
know for the rare and valuable ores that are brought from the other dimension
know for their crafting of art
you want to bye some "versatile" equipment or sell you questionably obtained goods? you came to the right place
know for its poisons and people willing to "take care" of a bothersome person
need some ores? we got them all
energy?
known for crafting fine weapons
know for the great building projects they take on and complete
produces vast amounts of plant food and sell several types of potions
has a poor economy but probably the best soldiers in the WoE
provides magical crystals that make any item it is added to more powerful
famous for the best of the best fish it has; also know for the its pearls
each economy has it weaknesses and strengths and can reduce their weaknesses by trading with other elements; maybe add bonuses when certain elements trade?