Lots of changes this time. Based on some evaluations, I wanted to encourage more splashing and multicolor decks, so I added fetchlands, shocklands, and some other useful lands to make it easier to draft these sort of decks. Potentially this may add some homogeneity in the cube, but hopefully the specific synergies between the cards will prevent that. I also added the cycle of signets to help with multicolor fixing and also as a way to add more ramp, to potentially speed things up a bit to get out the larger artifacts more quickly (and add to overall artifact counts).
I removed a number of cards that seemed too slow, not synergistic or strong enough, potentially too redundant as compared to other cards I left in the cube or to general strategies that may have had too much support.
I made the very difficult decision to cut my cube down to a standard 360 cards. I cut the cards that I was least excited about and appeared to either have the least impact in a game or seem too strong for specific archetypes.
Also with the release of Lost Caverns of Ixalan, I tried to slot in some of the artifact-centric cards into my cube. I attempted to remove some of the duplicative stuff the cube already has (lots of large/expensive creatures) and try to provide more support for more aggressive/faster strategies.
I am also shifting my focus away from a more specific set of 10 color pairs and trying to branch out the cards more to provide more overlap and more "general" synergy with artifacts among all the colors, such that a player would feel less railroaded into a color pair and could make a multi-color pile of cards work quite well with some of the more niche cards.
I wasn't happy with RG being so different and disconnected from the rest of the cube as the oil counter archetype. So I changed the archetype to be the "anti-artifact" archetype, or more specifically the punisher archetype. RG has cards that interact with artifacts, but mostly cards that either punish your opponents for their artifacts or you benefit from your opponent's artifacts.
After my first draft with this cube I found that many of the games were very slow. As such I am streamlining the GW archetype to be much faster with lower average CMC to help punish slower decks and hopefully speed things up. Will also be dramatically changing RG since I wasn't happy with it to begin with.