Um, the "Decreased mana used by" Defensive upgrade seems to be missing a word.
Also, in the stats, it says "Mana used: 118%" After I upgraded it a few times. Wouldn't that mean that I use MORE mana, not LESS?
Viewing post in Towers VS. Cubes - Worlds comments
Yes this is a visual bug in the stats menu. I created the stats page as the last thing before publishing the game, and I forgot to display the mana used by lowering the percentage instead of increasing it. in the code however when the towers and the player shoot, it uses a formula that is correct. Sorry for this
Edit: this has now been fixed in an update