MagicField guides
UB

Theorix

Blue–Black (UB)

Fill the graveyard while surviving

DesignedDual land Theorix AnnexAllied, then enemy order · no 17Lands data yet
Strategy
Mode

How it wins

Trade resources and develop blockers while useful cards accumulate in your graveyard. Then larger threshold creatures, reused spells, or a recurring threat can finish the game.

Early
Cast blockers and trade when the exchange helps. Let normal spells and trades contribute to the graveyard before paying for optional milling.
Middle
Use a prepared mill spell when it turns on a specific reward without surrendering a necessary defensive play. Recount after exiling or returning cards.
Finish
Win with improved creatures or a second use of a valuable spell. Recruitment costs eight to flash back, so plan the mana rather than treating it as immediate free value.

What it needs

Investigate Theorix when useful black or blue bodies, removal and a graveyard reward overlap. A repeated mill effect is support to evaluate, not the reason by itself to commit.

Four checks while you draft

  1. 1
    Creatures that also set up the graveyard

    Does this pick add a creature that can block before I spend mana milling?

    A prepared creature contributes to combat before you spend more mana milling.

  2. 2
    Graveyard input with a purpose

    Which actual card benefits from the graveyard cards this pick creates?

    Milling is useful when the cards enable threshold or retain a use from the graveyard. Repeatable milling should stop before it risks your library.

  3. 3
    Something worth finding in the graveyard

    Does this reward remain useful without threshold, or is the graveyard already close enough?

    Flashback, a return effect, and a threshold bonus are distinct rewards. The deck can use whichever your pool actually supplies.

  4. 4
    Time to use the second half

    Can I answer an attacker while leaving enough mana for my next development play?

    Cheap interaction stops a milling turn from costing too much life; a broad answer handles threats that ordinary blockers cannot.

Choose the missing job before another reward that needs it.

What to take next

You have threshold creatures but too few ways to fill your graveyard.

Add a prepared body with Omit Variables.

These creatures affect the board before you pay for their milling spell; do not spend the setup mana while an urgent blocker is missing.

You can mill repeatedly but have no worthwhile return.

Look for a card that can turn the graveyard into creatures or another spell.

Recruitment has flashback; Rewrite returns an eligible creature or planeswalker with mana value six or less.

Your setup works but opponents attack through it.

Repair the interaction rather than adding another mill effect.

Last Gasp handles smaller creatures cheaply; Extended Absence costs more but exiles. Count your crowded mana costs.

The support is missing

Keep a normal blue-black creature-and-removal deck if graveyard rewards are sparse. Drop excess dedicated milling before cutting the blockers and answers that let the deck survive.

Signals to watch
  • Void Extrapolator and Theorix Metamage arriving repeatedly supply bodies as well as later milling. The hybrid Metamage can be drafted by neighboring color plans too.
  • Look for useful black interaction such as Last Gasp alongside a reward like Recursive Recruitment or Rewrite Regrets. Mill cards arriving without rewards are incomplete evidence.

Repeated useful cards are clues, not proof that the colors are open.

Don’t
Milling with no return

Cards in the graveyard are not automatically cards gained. Prefer board development when the mill has no concrete beneficiary.

Treating the graveyard count as permanent

Flashback, return effects, and exile costs reduce the count. Recruitment itself is on the stack when its flashback version counts graveyard cards.

Mill plus mill is not a finish

Two Omit Variables cards can stock the graveyard, but threshold, flashback or a return effect must make that investment matter.

Best commons & uncommons

Grades by J2SJosh · Review 1 ↗ · Review 2 ↗ · Review 3 ↗ · checked Sep 26, 2026 · Individual general Limited grades; not pair-specific ratings.

Bombs in these colors

J2SJosh · MTG Arena Zone · Sep 26, 2026

Cards for this pair

GoldUncommons and rares in both colors
Echoed pack partners 30 pairs with at least one castable half
All echoed cards with a castable half →
All 146 castable cards →Including hybrid and colorless cards

Worked turns

2 examples

Examples apply the printed rules; judge the board, costs and timing.

Set up a large return

  1. If you need a land, pay the Witchstalker’s basic landcycling cost and find a basic into your hand.
  2. After reaching four mana, Rewrite Regrets can return the six-mana creature from the graveyard.
  3. You get its entry life gain and the spell’s empower. Graveyard exile or a counterspell can interrupt this line.

Check the threshold before using the graveyard

  1. Before an attack, count actual cards in your graveyard.
  2. Check whether returning Gallia and exiling another creature will take you below seven.
  3. If losing threshold removes Metamage’s flying at the wrong time, change the order or delay the return.

Adapt the plan to your format

Pick-TwoOne-pickSealedReality Echoes
Combine a usable body or answer with the missing graveyard component. Two milling cards are not automatically a better pair than one enabler and one card that benefits from it.Secure useful creatures and interaction while looking for a concrete graveyard reward. Each one-card pick must work without a guaranteed matching card in the following pack.A Sealed pool may supply good black removal without enough threshold support. That remains a legitimate UB deck; the school label does not require dedicated milling.Choose one complete pair before the game only when its castable half helps this deck. If you exile the Gallia pair, then cast Gallia, Tragic Host for {1}{B}; her {4}{B} return ability works only after she reaches the graveyard, and neither exiled half counts toward threshold. Normal costs and timing still apply; only one half can be cast from exile. You may leave the other half in exile instead of shuffling it. Ask your store whether both halves must be in your deck.
Rules for every deck →What every two-color deck needs before the plan: early plays, answers, a curve and mana · BuildOpen the workshop →