Scroll Library
I know that I might get a lot of hate for this comment. And i can certainly understand that getting your conclaves to level 4 is sometimes a long way to go, but you can usually count on the AI to get one for you. In any case I feel like the Blizzard Scrolls are WAY to cheap for what they are.
Spending 90 gold for an instant massive AoE burst is broken. I find myself buying stacks of them whenever I get access to a scroll library. The main problem is that the spell is instant and/or that the price is so cheap. I feel like increasing its price to at least 150 would be better.
Using one per battle with a stack of 5-7 of them, I can crush any faction in a dozen of turns without taking much damage in return, if any.
I know the access to these scrolls are given in the mid-late game, but that is especially the moment when you have gathered enough water altars and evoker/path of the mage/magical items on your mages to buff its damage to a stupid amount.
In a similar manner, paying 90 for an air elemental which will only last for the duration of one battle in the latter stages of the game (where Juggernauts, Companies, Dragons and such are common place) feels a bit underwhelming. That's like paying 90 gildar for a Titan's Breath...
Also why not making it possible to buy Fire, Water or Earth elemental Scrolls?
Thank you.