Has anyone put together a list of what buildings allow what buildings, and what buildings allow what units?
Also, is there a "tech tree" for spells? Do certain spells need other spells to allow you to research them, or is it just completely random? I noticed I could research the spell "healing" at the same time as the spell "lesser healing", so it can't be all that intuitive. (EG: Researching low-level spells allows you to get higher-level versions of them)