My wife really liked her Type IV druid character. In particular, she liked that she could change shape into a wild beast of some sort. She preferred tiger. Needless to say, she was disappointed that this feature of the druid class wasn't available in Microlte74 until the druid reached 7th level.
So I changed it around a bit for her. I knocked the Experience Base up to 30, and changed the shapechange ability to be "once per day per level" instead of "three times per day at level 7".
We haven't playtested it much, but I don't think it'll break the game. She hasn't played with the kids at all, because she's usually trying to keep the 2-year-old from attacking all the minis on the table (poor toddler wants to play D&D SO BAD!).