I tried your suggestion of replacing the fire storm. I agree that it's better. Thanks for the advice
About the earth quanta, it really depends. If you got 2 to 3 pends early and mitosis late you obviously got enough.
But usually you got enough to get one at least every two turns. Also because the SN supports your amount of
.
I recommend to try it out a little, you may encounter games where mitosis is quiet useless. xD
As you said, the deck IS vulnerable to control, i.e. against owl's eye or AM.
As stated in the OP, you can survive even without golems for a while, as long as you got a SN, because it allows you to kill lots of creatures just with the other cards.
The theme of the deck is CC, but it surely can be improved.
I.e. you can half the control cards, add the 6th SN and a pulverizer, precognitions to speed up your draws, more creatures etc.
I got to admit, that I didn't try too many variations, because I just wanted a deck with lots of CC.
I may try some changes when I got time and post them.
If you got more ideas, or are going to try out something yourself, I'd appreciate to hear of it
Being a fan of Steel Golem, I'm always interested to hear how they do in decks built around them.
Also I'm going to try a mix of the two decks mentioned in the OP (Modified Golems + Golem's CC). Looking forward to it