I submitted the cube for public feedback, and while it was sparse (and a little confused) it was generally positive.

The first change I'm enacting is to lower the average CMC of red creatures, on the basis that Burn requires early damage to go off properly. Kolaghan Forerunners was already a concerning card for me because unsupported it's a 1-damage trampler (so, basically not a trampler). I'm swapping in Zurgo Bellstriker. Goblin Guide's downside is more felt in the format, and I wanted to preserve that Dash late-game opportunity (it's one of my favorite mechanics).

I want to follow this up with the first of several card edits: Tilonalli's Skinshifter is a powerful effect, but when it impacts as a 0/1 for 3cmc and is only as good as it's neighbors it's less of an aggro card and more of a midrange card. It also naturally precludes a synergy with any Legendary, which avoids Captain Lannery Storm, Alesha, who Smiles at Death and the new Zurgo Bellstriker. It's an impactful card in ramping when attached to other ramp-y friends, and for this reason, I'm kicking the CMC back to .

Molten Vortex was brought up once as a problem card, mostly on the basis that the deck it enables is boring. While that's not...incorrect, it does something that no other card in the cube does: provides a one-card strategy (just mountains). This kind of flexibility leaves a b-option for off-pick drafters, and at worst it's a late pick. I think it deserves it's position.

The Cubecobra analysis highlighted Rakdos Augermage as the card in the cube with the lowest ELO, which makes sense since it's symmetric discard (intended to enable a hellbent), and I chose it on the basis that it rewarded clever aggro playing and included a repeatable effect, but It also has the distinct ability to fudge-over your own strategy. The correct choice, given the cube, is Murderous Redcap, but then I've baked a powerful infinite combo in with Anafenza, Kin Tree Spirit, so unfortunately I need a second choice. I think Hellhole Rats is an okaaay replacement, but I'd love something more clever that comes in T1-3. Hopefully something's in the MTG future league pipeline.

The most concerns were raised for the card Inverter of Truth, and when I first conceived of the cube, it was not so singularly powerful. Day's Undoing, Paradigm Shift, and Diminishing Returns were in the cube for reshuffle effects, as were more chump-fliers, so a 6/6 Colorless Flyer with upside for 4CMC sounded like an excellent late-game finisher. Now, I'm realizing just how powerful that is and wondering if it straight-up breaks the cube. Here's the problem: there is no other card even remotely like it, especially in Black. This brings me back to the forlorn conclusion: card edits are necessary in this format. Here's what I've come up with:

CMC=3BB, the highest I want to go, in league with other closers.
P/T=4/4, Keeps it safe from red for all but Flametongue Kavu, and makes it a 5-turn clock on it's own.

I completely missed that Lux Cannon can hit any permanent, and not just non-land permanents, essentially guaranteeing land destruction on T7. While that's not awful, per se, it's before the end of the deck, and could cripple, say, a Ruinous Ultimatum deck. Looking into alternatives, there's nothing quite so clear and wide. I'll be erratta-ing the card to only hit nonland permanents.

Searing Touch is concerning me with a CMC of 5, which is hard to accomplish consistently and is severely over-costed for the effect. I'm reducing the buyback cost to . This makes it consistent with Recruit the Worthy, and hopefully it will see more play, as I think it enables some interesting lanes of play.

The final complaint was that Ruinous Ultimatum was too expensive and distorts the deck, to which I say: maybe? I intended it to be an end-game condition and I've given fairly little recourse on the other player's end. Aside from a clutch Giver of Runes or Legion's Initiative, it should win you the game. Dawn Charm and Nevermore could shut it down, as might Thalia, Guardian of Thraben but they're intended to be strong control spells. I think that's worth a gamble, and puts it outside the tri-color "splash" zone. When I was conceiving of the cube I also considered Ankle Shanker, which accomplishes a similar effect, but without the double-colored-mana cost, it's too easy to pull of and was in every deck. Ruinous Ultimatum stays and, I'd argue, maintains deck diversity.