I have the impression that the game is completely poorly designed. I wonder why anyone thought that putting a mass of enemies that can either damage stats or worse level in the first act is a good idea. The problem is that you don't have access to too many Restoration Scrolls (in the first act there are probably 4 in total). The fact that a single scroll heals only one drainage does not help either. To make it more fun, there are only a few such enemies in Acts 2 and 3.