Please add a limit to the power of the wilderness and dual element town enemies. It doesn't make sense for them to scale endlessly with you, there must be a point where you fail to find stronger enemies. Especially when the elemental wildernesses say that they're only starter ones.
Edit: I think it would be better design to just split the wilderness into zones, like how Willowbrook combat is handled. If the inner areas are indeed stronger than the outer ones, you should be able to choose which level of monster you want to fight.