Art by Dmitry BurmakI'm Mars and this is my Cube. I like high-powered Limited with a lot of the all-time greats (like Jace, the Mind Sculptor and Umezawa's Jitte), but I don't use the Power 9, nor Library of Alexandria nor Sol Ring etc.
Banned due to power level:
Power 9
Balance
Moat
Mana Drain
True-Name Nemesis
Tinker
Sol Ring
Library of Alexandria
Tokens and "going wide" are at the core of aggressive and midrange strategies (Brimaz, King of Oreskos, Divine Visitation). There is a lightly supported Human-tribal theme for the occasional flair to aggro to make it more appealing than generic white-weenie (Thalia's Lieutenant).
The slower strategies supported are the value-generating Blink decks (Ephemerate), as well as control-style strategies supported by the suite of planeswalkers and wraths (Elspeth, Sun's Champion).
Blue
Blue plays more of a supportive role for other colors doing more defined things; it would be very unusual to draft a mono-blue deck in this Cube. Blue enables control and combo decks with its suite of cantrips and card advantage (Thought Scour, Thirst for Knowledge). Its most independent identity is in the "spells-matter" archetype (Murmuring Mystic), but it has one-off build-arounds too (Opposition, Show and Tell).
Black
Black leans aggressive in this Cube with its low curve. It supports sacrifice archetypes from the aggressive end of the spectrum (Bloodsoaked Champion) to the slowest stax-based decks (Braids, Cabal Minion). Black supports combo through tutors (Demonic Tutor) and reanimation spells (Reanimate).
Red
Red is primarily aggressive, supporting decks that want to spell-sling (Young Pyromancer), go wide (Goblin Rabblemaster), or burn the opponent out (Risk Factor).
Red has some build-arounds to offer diversity outside of aggro: Wildfire is its own archetype, and there is support for aristocrats (Goblin Bombardment), and combo (Sneak Attack, Ilharg, the Raze-Boar).
Green
Green naturally forms the base for ramp (Incubation Druid) and 5-color (Niv-Mizzet, Reborn) strategies, but has some aggressive offerings (Hexdrinker) too. Green has some "unfair" build-arounds (Natural Order), and pairs well with graveyard (Survival of the Fittest) and blink (Esika's Chariot) strategies. (There's also the secret Squirrel deck.)
Azorius
This section contains very powerful gold cards that primarily support control (Teferi, Hero of Dominaria, Fractured Identity). Due to Blink being supported in each individual color, it also has a signpost in the gold section (Soulherder); regardless of your direction, expect your deck to be the slower deck.
This color combination will commonly find itself supporting a reanimator strategy due to the mono-color offerings of tutors (Entomb, Mystical Tutor) and discard outlets (Looter il-Kor, Heir of Falkenrath) to move the right cards to the right zones. The gold cards in this section engage with the graveyard (The Scarab God), or are simply pound-for-pound the best gold cards (Baleful Strix) in this powerful guild.
Rakdos
These colors are primarily aggressive decks, and they intersect favorably with cheap, fast creatures. A black-red deck in this Cube will be an aggressive deck 99% of the time, and the gold cards (Judith, the Scourge Diva) support a sacrifice-based aggro strategy.
Gruul
It would be rare to draft a purely Red-Green in this Cube, since Green will typically support an additional color with ease. That said, Red-Green will manifest as an aggressive-leaning, creature-based midrange deck that occasionally does unfair things, e.g. abusing lands with Wrenn and Six or getting Dragonlord Atarka on the battlefield ahead of schedule.
Selesnya
Selesnya decks are filled with efficient creatures that can do "cute" things, like flickering Eternal Witness into some infinite value loop, or going wide with token strategies (Trostani Discordant). These decks are usually toolboxy (Enlightened Tutor, Birthing Pod) but fair.
Orzhov
Similarly to Rakdos, this guild is the intersection of two aggressive colors, so it leans into its creatures that are recursive (Gravecrawler) or otherwise make extra material (Lingering Souls) to create advantages on the battlefield. These advantages can result in an aggressive deck (Intangible Virtue) or a more Smokestack- or sacrifice-based (Hidden Stockpile) deck.
Izzet
Izzet is a little atypical in this Cube, because it doesn't really do the spells-matter or Storm thing. The common use of this color combination is for Wildfire decks, which play well with planeswalkers (Dack Fayden) and large creatures (Niv-Mizzet, Parun). The gold cards that complement this strategy also lend themselves to a draw-matters theme (Nadir Kraken), which has support aside from Wildfire in Thassa's Oracle and Jace, Wielder of Mysteries. This guild is rarely doing anything fair.
Golgari
A Golgari deck is going to be focused on the graveyard. Sometimes that means drafting a Recurring Nightmare/Survival of the Fittest/Birthing Pod toolbox-value deck, but the mana flexibility offered by Green also opens up other colors (Master of Death, Kroxa, Titan of Death's Hunger) for a self-milling deck anchored by Skull Prophet or Grist, the Hunger Tide.
Boros
All aggro, all the time. This deck is going to be low-to-the-ground and likely burn-focused (Lightning Helix, Integrity // Intervention) but also offers some variety to the aggro drafter with some build-around options at the top end of the curve (Winota, Joiner of Forces, Showdown of the Skalds).
Simic
Of all the Green ramp decks, this color combination goes the biggest (Hydroid Krasis). Your deck might feel like a Commander deck, because it's all about making mana and drawing cards (Uro, Titan of Nature's Wrath).