I've always liked transmutation magic, its one of my favorite areas of magic. Transmuters turn one thing into another and for the most part when your wondering how a Gorrilalion came into being when you say a Wizard did it you likely mean a Wizard specialized and transmogrification.
Yet there exists very little in the rules in regards to permanent enhancement or transmogrification. It seems like a Transmuter should be able to make permanent changes to other living things.
I think these changes should have a cost greater than magic items certainly that have the same effect.
Just wondering if anyone had any thoughts.