This is the deck as it stands before changes:
https://imgur.com/cYyFSk0

First: The play-testing results.

The modular mechanic got a little out of hand and I felt like i wasn't focusing enough on what each color could bring. More than anything it felt like white-focused decks lacked...purpose? It felt like an enabler-color for other deck strategies.

The colorbending, however, is working. I freaking love what Gnat Miser is doing for blue "mill" strategies. The ratio of multicolor cards felt like it eliminated a lot of what was working about the format, and more than anything, made for a same-ness I don't like.

Second: What I'm going to do about it.

I'm going to cut colors from the cube.

Why? Well there's a few reasons. For a format this small, there's a natural punishment of multicolor-goodstuff, the land-base required to support that muddied the draft to the degree that land choices were more often duds than good picks. Moreover, I felt like the split left me with discordant archetypes--usually at one-per-color with modular as the support. I want harmonious archetypes in-color. I want multiple lines of interaction.

So, what will the cube look like now? Well, first going back to an earlier post, I would want to remind us that the format favors quick interactions followed by attrition, with the endgame a race between each deck's clock. To this, each color should have some access to early-, mid-, and late-game options. Conceptually, this is how I'm viewing the current archetypes:

Red: Repeating Damage I want red to to take some of the classic green archetypical mana production, attempting to outpace it's opponents by setting up an engine of repeatable direct-damage effects.

Supporting mechanics include damage modifiers, mana outlets, and damage outlets. Red can go tall, red can go fast.

Black: Creatures Matter I want black's traditionally undying creatures to take center stage in its win condition, taking advantage of sac loops and repeatable token generators. I want to see black win through going wide.

Black supporting mechanics include Sac Value opportunities, lifegain options, and unblockable creatures.

Blue: Outlast Card Advantage through hand control, and opportunity advantage through resource denial and taxation. The primary victory of blue should be removing opponents ability to play their strategy out. I will be bending-in a few to-the-bottom-of-your-library effects, to make this easier. I will also introduce a new format win condition, in place of decking, where some stalemate conditions result in a victory. (The exact wording is TBD, but essentially I want non-play non-damage stalemates to win in blue's favor).

Blue supporting mechanics include return-from-exile effects, flashback, small conditional mill effects, and repeatable counter-spells.

Will this work?

I'm honestly not sure, I'm re-entering a testing environment in a big way. I have the decklist saved if don't love what I come out with, but re-establishing a color pie is odd. I'm trying to keep the essence of each color's long-game meta-strategy in tact.

The five-color nature of the color pie at this point necessitates color-bending, but I'm going to do my best to respect the integrity of each card's CMC and tradeoffs. I want to avoid making new cards, per se, that said for balance reasons I might alter cards.

One of the biggest hurdles is the idea of off-color costs, two-color cards are restricted by access to two resources. Obviously, cards in Dimir, Izzet, and Rakdos have automatic viability in this cube, but if I were to color-bend a Gruul effect I wouldn't want to give access to another color. To meter this, I might introduce costs, and increase the number of utility lands. Ideally, this keeps mono-color decks at the forefront of the drafting experience.

I also think I can abandon the storage lands that CardKnockLife so loved. Mana having a per-turn cap is an incredible meter for many of the stronger effects in the cube, I don't think I need to be flexing anything over 5cmc.

Do I know what I'm doing?

Maybe

P.S. With this update, I get to flex my way around some of the color-locked abilities. This means I will be abandoning both the enemy storage lands and the colorshifted cards.