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Mirrodin Besieged

Enchantment

As this enchantment enters, choose Mirran or Phyrexian.
• Mirran — Whenever you cast an artifact spell, create a 1/1 colorless Myr artifact creature token.
• Phyrexian — At the beginning of your end step, draw a card, then discard a card. Then if there are fifteen or more artifact cards in your graveyard, target opponent loses the game.

CMC
3
Mana cost
{2}{U}
Color identity
U
Rarity
rare
Set
Modern Horizons
Price
$5.28
EDHREC rank
#2379
Buy on TCGplayer
Mirrodin Besieged card art
Mirrodin Besieged is a repeatable artifact-recycling engine that either floods the board with Myr tokens or drains the table when artifacts hit your graveyard — two modes, both relevant. In Urtet, Remnant of Memnarch decks it's a staple because every Myr Retriever looping through the yard triggers the Phyrexian mode, turning self-mill into free life loss at scale.

Best Commanders

Commanders with the highest synergy

01
Urtet, Remnant of Memnarch

Urtet, Remnant of Memnarch

64.5% of decks · synergy 0.63

Mirrodin Besieged appears in 64% of Urtet, Remnant of Memnarch decks because the Phyrexian mode stacks directly on top of Urtet's artifact-looping game plan — every recursive trigger is a free drain to all opponents.

02
Golbez, Crystal Collector

Golbez, Crystal Collector

50.2% of decks · synergy 0.48

Golbez, Crystal Collector's artifact-heavy shell makes both modes of Mirrodin Besieged payable: early games you flood the board with Myr tokens for fodder, and once the graveyard loop gets going the Phyrexian drain closes games.

03

Tetzin, Gnome Champion

32.7% of decks · synergy 0.32

Tetzin, Gnome Champion incentivizes running dense artifact counts, and Mirrodin Besieged rewards that density with a token stream that also serves as sacrifice fodder for Tetzin's own triggered abilities.

04
Emry, Lurker of the Loch

Emry, Lurker of the Loch

35.1% of decks · synergy 0.30

Emry, Lurker of the Loch mills artifacts into the graveyard constantly, and Mirrodin Besieged converts every one of those entries into a drain trigger when you're on the Phyrexian mode — the two cards create a self-sustaining value loop.

05
Urza, Chief Artificer

Urza, Chief Artificer

26.4% of decks · synergy 0.24

Mirrodin Besieged slots into Urza, Chief Artificer as a token generator that feeds the artifact-creature count Urza wants to make everything a threat, and the drain mode is a reachable secondary win condition once the graveyard loops assemble.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Commander is where Mirrodin Besieged lives — the enchantment is legal in Legacy, Modern, Vintage, and Oathbreaker as well, but it's far too slow and narrow for any of those competitive formats. In Commander the calculation flips: three mana for a persistent enchantment that either generates board presence or drains up to three opponents simultaneously is exactly the kind of asymmetric value the format rewards. The Phyrexian mode in particular scales with pod size in a way no 60-card format can replicate. Outside Commander, treat this card as unplayable in competitive contexts and focus entirely on its EDH applications.

Key Combos

Combo lines featuring this card

Budget Alternatives

Cheaper options that do most of the same work

If Mirrodin Besieged is out of reach, Grinding Station does similar graveyard-feeding work in artifact-loop decks for under a dollar, though it doesn't generate tokens or drain opponents passively. Efficient Construction is another near-replacement in artifact-dense shells — it produces Thopter tokens instead of Myr and costs nothing per trigger, but the drain mode that makes Mirrodin Besieged a win condition in recursive loops is simply absent.

Price Context

Current price

$5.28 mid tier

At $5.28, Mirrodin Besieged sits in the mid tier — expensive enough to feel like a deliberate include but cheap enough that any artifact-focused Commander deck running the Phyrexian drain mode should just buy it. The card has a dedicated combo identity that keeps demand steady, so this price reflects real play demand rather than speculation.

Explore

Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.