Let us test our classes in test scenarios, e.g. let me place a AI-Player vs a NPC Test-Dummy.
This way we could do multiple analysis (dps,…). This tool also should give informations about each class/npc, so we can see which class is fastest to gain exp, does most dps, frequency of deaths, most deadly npcs and so on. This could be expanded to quests, to let us know which quests are done more frequent and which are the easiest.
This way we could test and balance our classes.
With such a tool we also could test how hard our mobs are to kill.
Such a tool would be nice to play around while the game slowly runs.