This is my biggest question right now regarding FE, will there be spells (endgame high cost spells) that have 'cool' empire-wide effects?
I'll use my fav fantasy strategy game as an example, Age of Wonders: Shadow Magic.
Such as, a spell costing upkeep (or just lasting a few turns) that grants vision or denies enemies from seeing far into your lands (a sort of "Dark shadow terrain" spell).
Or something like, if you're playing as as human race you could cast a spell that "pretty-grassifies" a part of the enemy territory, reducing their productivity there until it dissapates. In turn they could use a territory-wide magic shield spell to protect against such silliness.
Or other world-level spells like spawning a storm or marsh or whatever over an enemy army, denying them movement for a turn?
