Devourers acts as pillars. Yes, you might not get to play all the creatures that you fractal in one turn, but you'll eventually can play all of them. I admit that I didn't test the deck yet, so it might be slower than I thought. Give it a try and tweak as what ever you feel right.
I'm interested in this topic since I personally used a similar deck (below) before I can built an uppgraded deck.
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