Not a whole lot to work with. The Reality Chip, C. Kirin, and Boseiju all seem like fairly straightforward upgrades. The W. Emperor, C. Construct, and Eater of Virtues are all (if promising) tests. The R. Battery is also a test, but its specific fit into the GH Gruul archetype is notable (not to mention the "Big Red" deck that is emerging). Rector is dead, so that was just an open slot--whereas, the C. Construct can (maybe?) replace the Desperate Ritual's slot in whatever combo deck might have used it. Lastly, my thinking is that both the Leviathan and the Sphinx are past their primes, as they only played well with Tinker, and the deck hardly wants to tinker for either, as they are probably its worst two payoffs. In any case, I am perhaps most hopeful about the residual value the reconfigure mechanic is adding to Stone (Cold) forge (Austin).