Sounds like you've made economy easier, and permanent bonuses better, something I do not think was underpowered.The real problems with armor is how dmg calculations work. Small differences, can mean huge differences, and it becomes unpredictable, and therefore gameplay experience can vary greatly(in an unbalanced way).Scrolls now cost 5 mana is way to overpowered. Even with it's original half, it was overpowered. The problem is scrolls are easy to find, you don't use em to often, and therefore you wouldn't need the rune in many cases. Runes should always be more powerful than scrolls, so therefore scrolls should cost more mana.Also scrolls should cost alot more gold, with the strongest costing 1k, or atleast 500g.