If you are concerned with people copying the deck, you can set it to private. If you wait a day or so, you can set it back to public to share it with friends and such. By then, other decks will show up before yours and people would have to hunt your deck down, so it's essentially private, but with public privileges.
Other than that, as far as suggestions go, I would definitely up the land count to the 23-24ish range. Even with ramp and such, you need to make sure you get hands that you can play if they remove your ramp. The other thing I'd suggest is going for four
Drover of the Mighty and cutting
Servant of the Conduit. You don't have any other uses for energy, nor do you have consistent sources. Plus,
Drover of the Mighty will, ideally, be a 3/3 pretty much all the time, whereas
Servant of the Conduit is always a 2/2, which is in range for
Magma Spray and
Shock and such.
Hope you found this helpful, and I wish you luck and joy in trampling your opponents!