Edit: I found out you can cast it inside and outside of cultural borders (neutral ground) if you broke the peace.
The hellfire can only be produced on tiles with no farms, cultivated resources and mines I believe. It can be produced where there are roads. Im not sure how close to one another they can be produced.
The hellfire can only be produced on tiles with no farms, cultivated resources and mines I believe. It can be produced where there are roads. Im not sure how close to one another they can be produced.
