[zlefin]

I'd like to able to mod castles. It'd be nice to be able to create new castle options for various nations. (including the number of arrow towers in a castle)

I'd also like to be able to add castles with special abilities (like how that agarthan cave thingy gives darkness). maybe a #onebattlespell for castles.

also castle related: for nation editing; i'd like to able to edit what that nation gets per arrow tower in its castles. I'd like to make a mod where the castle arrows are a significant force for all nations.