im just wondering how come you dont have much in the way of tutor cards? such as Fabricate, Enlightened Tutor or Diabolic Tutor i play a deck alot like this tho ive tried to stay away from infinite combos as much as possible. link below

Artifacts of Zion

I've always been a little hesitant to add tutors to the decks I have with combos, as my playgroup doesn't play any decks where they can consistently get out of control early-ish into the game (for the time being anyways). For now the deck has played relatively well, but if I find that it's starting to struggle to keep up with my opponents then I'd definitely look at the cards you listed to improve this deck.