1. That is very good question, this could be discussed for good time. Here are my possible answers:
A) He wants to show off with large amount of dangerous morphs
B) He switches morphs so they can't predict what he is going to morph into(and find possible weaknesses in it)
C) Ghost writers didn't bother to look info about previous morphs
Can't think about more right now.
If I had to make morph for him it would be creature at extreme speeds, much faster than Garatrons.
But that would of course be too hard to beat