With only one enchant artifact in the entire 60 card deck it's probably too unreliable to be of any use, and turqouise nymph just doesn't seem to fit in (with so few creatures, add more quints are remove them entirely)
I also noticed the only way to kill their creatures is to use fire storm, which might not be sufficient to keep your bone walls fueled (since each death adds a stack to the bone wall).
Overall it seems too big, have you tried it out? If so, what were the weaknesses of the deck you ran into?
For using Stone skin to get 400 max hp takes 62 earth quanta and every copy of the card in your hand, this would require a lot of stalling.