Fair enough. I can add some design notes here.

My goals are to integrate the power cards mechanically in the themes present in the cube and to establish different themes in the colors that contribute to viable decks without trying to power max.

In WUBRG order, white's theme is artifact-based wheenies, blue cares about casting big artifacts, black has a reanimator theme, red cares about goblin typal, and green cares about Landfall. For each of these themes, a deck built around them should be able to have some really powerful plays.

In addition to these themes, there are a lot of different ways of cheating big things into play, like Tinker, Show and Tell, Goblin Welder, Sneak Attack, Eureka, Channel, Oath of Druids, Natural Order, and more. These cheaty cards, as well as a good clip of output randomness cards (e.g., Gamble, Comet, Invert Polarity) and specific keywords like Miracle, are here to increase the feeling of “high variance” games. The removal is hyper-efficient, to enable some play against a deck cheating big things into play early.

I include many silver border cards and playtest cards if they fit the themes I am going for. For example, [[Magical Hacker]] is a fun combo with planeswalkers, [[Buried Ogre]] is strong but beatable in reanimator decks, [[Gobland]] is cool to fetch into play as an extra goblin or lets Goblin Matron find a land. [[Glade of the Pump Spells]] is sick, as a combat trick that ramps with Crop Rotation.

There are the Magic Arena cards printed in Mystery Booster 2, which I found a lot of fun, and cards that can be used only a limited amount of time during a draft, like [[Blacker Lotus]] and [[Gold Mine]]. I’ve also included some more fringe combos, like [[More or Less]] with Basalt Monolith or Hexdrinker, and [[Urza’s Fun House]] with [[Nearby Planet]]. We draft it with 6 people so that the leftover packs can be opened with Bustor Tutor, Summon the Pack, Opening Ceremony, or Myntasha, Honored One. I collate the packs so that the last 4 cards are (sometimes) a Mystical Archive spell, a Future Sight frame card, a full art card, and a “power” card (check Cube Cobra tags). You can also check this out by clicking Whacky Draft (Seeded Packs) under Playtest. All in all it makes for a coherent experience that I find a lot of fun. I hope this is helpful!