Version 1.128

[Paladestar]

Most mana buildings get a ~20% output increase when upgraded from ch17 to 18, even my Frost Carved Christmas Trees which gained zero mana going from ch15 to ch16 and only gained 4k per day from ch16 to 17. This chapter they jumped from 96k per day to 116k per day (+20k per day).

 

[Alcaro]

mana requirement in ch.18 it's insane. I did few upgrades and used 9 mil. mana.

 

[Gargon667]

And that works very well until you open ch18 and continuously hit huge excessive mana requirements.

Spells are now running for up to a year on some buildings and have passed below 1000 so a rethink is on my mind as requirements are now becoming unsustainable for me currently.

A good idea by Inno to increase mana requirements, since everybody has increased their mana production, they adjust requirements accordingly.
I guess it depends how many of those big mana requiring techs there are, after all every chapter gives you half a year to collect spells.