No Minion Mage on a budget sounds like a bad idea, but I think (given the archetype's current tools) that it isn't much worse than you could do otherwise. Cosmic Keyboard feels like the most important card for this deck, but I like Frost Lich Cross-Stitch and Spot the Difference as additional ways to get bodies on board. Turn 6 with Manufacturing Error is the power spike, we just have to get there and hope we hit something good.