I really can't see metalmorph as a good card in this deck, if someone can explain me why it is good, I will be pleased. I am farming for the third EC. There are so many mirror games agaist HHG that I have a good use for 2 Wild Tornados. I don't like Amazon sage, I tried other options on this slot, it is sometimes useful, but not that good. Well, it is 2x KOG with this deck, I will keep my lucky.
Metalmorph is good because once HHG is down, your monsters are kind of weak and you don't have OTC to deal with stronger enemy monsters.
I used to not like metalmorph at all but at the moment I think it's very good card.
But mirror wall works very well, too.