Yes its true Miller is a **** **** who is so stupid he can't make his own deck so he uses yours well, in many cases you can lose too him cuz of really poor luck he could get a better position than you. Alls you do is simply build a deck with no attacks and wait it out HAHAHAHA its so funny cuz miller makes like 20 guts b4 he realizes he is screwed!! Same thing with Ellie =)
Oh and another really fun thing too do is too put in some env cards that raise damage like Hot battle and so on and watch as Miller so stupidly uses them and burns more guts hey i guarantee a quick and easy win against him. If you lose then you really shouldn't be playing video games =)