Card Advantage in Cube: Keeping Blue Honest

Card advantage in cube is the resource that decides long games, and in most cubes one color has far more of it than the other four. Blue draws cards. Black pays life for them. Green attaches them to creatures. Red and white get a Wheel of Fortune and a Land Tax if they are lucky. When the engines are too strong or too concentrated, every long game becomes the same game, and the draft funnels into whichever color has the draw.

This article names the engines that matter, sorts them by how much they take over, and lays out a per-color count that keeps the long game available to every drafter.

Why is card advantage the hidden power level?

Fast mana and free spells decide who gets to act first. Card advantage decides who is still acting on turn ten. A cube can have no Power and no free spells and still be dominated by blue if the draw engines are strong enough, because every fair game eventually becomes a contest of resources, and the color that refuels wins that contest.

Two things make this worse in cube than in constructed. First, singleton means there is no four-of consistency, so the drafter who gets the one or two best engines has a structural edge the rest of the table cannot copy. Second, the removal in most cubes is creature removal. An enchantment or artifact that draws cards every turn is answered by almost nothing.

Which engines take over a game by themselves?

These are the cards that, left alone for three turns, win regardless of what else is in the deck.

• Necropotence. Three black mana: skip your draw step; pay one life per card, exiled face down and returned at end of turn. Twenty life becomes twenty cards. Nothing else in the game converts life this efficiently.
• The One Ring. Four colorless: on entering, you gain protection from everything until your next turn; tap to add a burden counter and draw that many cards, losing one life per counter each upkeep. Colorless, so any deck can play it, and the protection turn means it almost always draws at least twice.
• Yawgmoth’s Bargain. Six black: skip draw, pay one life per card, no face-down clause. Necropotence for decks that can reach six.
• Sylvan Library. Two green: each draw step, draw two extra and either put them back or pay four life each to keep them. The best green engine and the fairest card on this list, because it is a filter unless you pay.
• Jace, the Mind Sculptor. Four mana for a Brainstorm every turn that also protects itself. Covered in planeswalkers in cube, but it belongs here too.
• Mystic Remora. One blue: draw a card whenever an opponent casts a noncreature spell unless they pay four; cumulative upkeep. A Commander card, absent from the MTGO list, and oppressive in two-player games against any spell-heavy deck.
• Rhystic Study. Three blue: draw whenever an opponent casts a spell unless they pay one. Same note.
• Library of Alexandria. A land that draws a card every turn if you hold exactly seven. Free, uncounterable, colorless.
• Ancestral Recall. One blue: draw three. The best single draw spell ever printed, but it is a one-shot, which is why it belongs in the next tier for format impact despite being Power.

The One Ring, Jace, Library of Alexandria and Ancestral Recall are all in the current MTGO Vintage Cube (list); Necropotence and Sylvan Library are not. An unpowered cube should keep Sylvan Library and Jace and test the rest one at a time.

Which engines are strong but fair?

These draw a lot of cards but cost a real resource, can be interacted with, or have a ceiling.

• Phyrexian Arena (three black, draw an extra card and lose one life each upkeep) and Dark Confidant (two black, a 2/1 that reveals and puts the top card in hand each upkeep, costing life equal to its mana value). Both are answerable, Confidant by any removal.
• Treasure Cruise and Dig Through Time: spells that exile cards from your graveyard to pay most of their cost, drawing three or looking at seven for one or two mana late. Cruise is in the MTGO list; Dig is not. Both reward the deck that already cast a lot of cheap spells.
• Fact or Fiction: four mana, reveal five, opponent splits, you take a pile. The benchmark for honest blue card advantage.
• Mulldrifter: five mana for a 2/2 flier that draws two, or evoke for three. The Pauper benchmark.
• Tireless Tracker, Courser of Kruphix, Rofellos era green value creatures: card advantage on bodies that die to removal.
• Wheel of Fortune (three red: each player discards hand and draws seven) and Timetwister: symmetrical refills that favor the aggro deck that emptied its hand first.
• Land Tax: one white, when an opponent has more lands, fetch three basics each upkeep. Thins the deck and never misses a land drop; strong in two-player, often underrated.
• Palantir of Orthanc, Mystic Confluence: cards the MTGO designers have moved in and out, which is a good sign that they sit on the line.
• Prepared creatures and Gandalf, Goblins’ Bane: the MTGO May 2026 and October 2026 updates point the same way: May said “card advantage stapled to creatures is always nice to have,” and October added Gandalf for “affordable card advantage” on a body. That is the design direction: draw attached to a body that can be killed.

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How much card advantage does each color need?

The goal is that every color has a reason to go long, and no color has three times the reasons of another. A per-color sketch for a 540-card cube, as a house guideline:

Blue still leads. It should; it is the draw color. The target is that blue has roughly one and a half to two times the card advantage of the next color, not three or four times. If your count has blue at 20 and white at 3, the control mirror is the only long game your cube supports, and cube color balance is where to start the rebalancing.

How do you keep blue honest without gutting it?

Four levers, in order of how little they disturb the rest of the cube:

1. Move draw onto bodies. Replace one enchantment engine with a creature that draws. The card is still there; now it dies to a Bolt. This is exactly the direction the MTGO designers have taken.
2. Cap repeatable engines at three per color. Jace, one other walker, one enchantment or artifact. Everything else is a one-shot.
3. Give the other colors their one. Land Tax, Sylvan Library, Phyrexian Arena, Experimental Frenzy. One true engine per color means every drafter has a long-game plan.
4. Add answers that hit noncreatures. Disenchant effects that are good cards (Qasali Pridemage, Knight of Autumn, Abrade, Assassin’s Trophy, Council’s Judgment) mean an engine can be removed by a deck that did not draft counterspells.

The fifth lever, which we do not recommend as a first step, is to cut the engines entirely. A cube with no card advantage is a cube where every game ends by turn seven and the draft is three colors of two-drops. Interaction density matters more than engine count.

FAQ

Is The One Ring too strong for cube?

For an unpowered cube, usually yes. It is colorless, protects itself for a turn, and draws two to six cards before its life cost matters. Powered cubes keep it because everything else is also broken.

How much card draw should blue have in a cube?

A house guideline is 12 to 15 card-advantage cards in a 540-card cube, about a quarter of blue’s slots, with no more than three repeatable engines.

Should I cut Necropotence from a Legacy cube?

Test it first. Without rituals and fast mana, Necropotence is a turn-three play that often resolves into a hand of cards the deck cannot cast. It is still the best black engine and it is a reasonable cut if black control dominates.

What is the fairest card advantage in cube?

Draw attached to a creature. Mulldrifter, Tireless Tracker, Wall of Omens and Dark Confidant give the card and give the opponent a target.

Count the draw, not just the cards

The quickest cube audit is to sort every color by how many cards it can draw over a game. Do it once and blue will almost certainly need trimming. Subscribe to The Ludarium newsletter for new cube design pieces, and to hear when Cube Commonwealth, our Indianapolis cube group, sets its first night as part of The Ludarium. The game is the reason. The people are the point.