There will be a new feature to the battle system called Mana Essence and it currently being coded in. This may take another month or two so bare with us as we get this new improvement feature in and ready for launching the TRUE DEMO.
The Mana Essence will be something you collect as you defeat enemies. Once collecting enough you can use it as currency, battle buffs, non battle buffs, transmogrify into a mouse to crawl through hidden areas, and much more. The game revolves around Mana, so it is only fitting the battle should as well.