@EmpiresPuzzles @Petri Seriously, 5 battle slots would be a HUGE improvement to the game. Look at the post above for a reasonable solution to how it could work and not make nuking worse (which involves lowering the cap of 5 items per slot to 4).
Often times 4 items is just not enough! Choosing the last slot often comes down to either health or mana potions. If making 5 slots is not possible (and even if it is) an awesome solution would be to combine those items to make a Rejuvenation Potion! (see link below for original post for rejuvenation potions)
Crafting rejuvenation potions could be something done in the currently underused Alchemy Lab and would require a health potion and a mana potion along with some additional items.
In fact, this could open the door to many more crafting possibilities. Currently items can only be transmuted up (common to uncommon, rare to epic) how about breaking down items?
Being able to convert across item types would be very useful. By item types I mean battle items to crafting materials! And even ascension items to crafting materials or battle items!
Since some items are used a lot, and some never, it would be a fix to the game economy if things were more interchangable.
Some ideas (all ideas can be BOTH ways):
dragon bone or titan parts to large bones
herbs or potent leaves to midnight roots
leather armor to leather strips
dagger and strong rope to giant harpoon
training manuals to anything else
arcane scripts to scroll of alteration
tornado to hurricane
bear and turtle banner to dragon banner
antidotes to healing potions
wooden shield and fine steel to titanium shield (or sturdy shield)