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Rules guide · Artifact Creature

Iron MyrHow it works & interactions with other cards

By the ManaCount desk· 2 min read· Scars of Mirrodin· October 1, 2010
Carte Magic Iron Myr

Iron Myr is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

01

Official card text

{T}: Add {R}.

Complete guide

Iron Myr is a classic artifact creature that serves a dual purpose as both a reliable mana source and a body on the battlefield. As a two-mana Myr, it helps accelerate your red mana production while contributing to your artifact synergies.

A Portable Source of Mana

Iron Myr is a mana creature, meaning it possesses an activated ability that produces mana. Because it is a creature, it is subject to 'summoning sickness,' so you typically cannot tap it for mana the turn it enters the battlefield unless it has haste. Once ready, you simply tap it to add one red mana to your mana pool.

Resolution and Timing

The ability of Iron Myr is a mana ability. Mana abilities do not use the stack and cannot be responded to; they resolve immediately after being activated. You can activate this ability any time you have priority or while you are in the process of casting a spell or activating another ability that requires a mana payment.

Common Mistakes

Players often forget that Iron Myr is an artifact creature. This makes it vulnerable to both creature removal like 'Go for the Throat' and artifact destruction like 'Shatter.' Additionally, remember that as a creature, if it is blocked and destroyed in combat, you will lose your mana source for future turns.

Strategic Implementation

Use Iron Myr to jump from two mana to four mana on turn three. In decks focused on artifacts, it provides an early body to trigger 'affinity' or other artifact-based effects while ensuring you have the red mana necessary for aggressive spells or finishers.

Interaction examples

Mana Acceleration for Warriors

On turn two, you cast Iron Myr. On turn three, you tap two lands and Iron Myr to generate a total of three mana, allowing you to cast Professional Face-Breaker a turn earlier than usual. Since Iron Myr is a creature, it could even attack later to help trigger the Face-Breaker's Treasure-generating ability.

Diverse Mana Production

If you have both Iron Myr and Ornithopter of Paradise on the battlefield, you have access to two additional mana per turn. While Ornithopter of Paradise can provide any color, Iron Myr specifically provides red. You can tap both to cast a spell requiring four mana total, using the red from the Myr and any color needed from the Thopter.

Guide written with AI from the official text and rulings. Official English text prevails.

How it works : Iron Myr

Original English text — Wizards of the Coast / Scryfall

No additional ruling has been published for this card.

02

Popular combos

Real combos played by the community, sorted by popularity.

Myr Galvanizer
+Clock of Omens
+Iron Myr
#1

Myr Galvanizer + Clock of Omens + Iron Myr

Infinite mana Myr you control can produceInfinite untap of Myr you control
  1. 1Activate Iron Myr by tapping it, adding {R}.
  2. 2Activate Myr Galvanizer by paying {1} and tapping it, untapping each other Myr you control.
  3. 3Activate Clock of Omens by tapping two other Myr artifact creatures you control, untapping Myr Galvanizer.
  4. 4Repeat.
  5. 5If you control another Myr that can tap to produce at least {1}, this combo nets infinite mana.
Myr Galvanizer
+Palladium Myr
+Voltaic Construct
+Iron Myr
#2

Myr Galvanizer + Palladium Myr + Voltaic Construct + Iron Myr

Infinite untap of Myr you control
  1. 1Activate Palladium Myr by tapping it, adding {C}{C}.
  2. 2Activate Iron Myr by tapping it, adding {R}.
  3. 3Activate Voltaic Construct by paying {2}, untapping Myr Galvanizer.
  4. 4Activate Myr Galvanizer by paying {1} and tapping it, untapping each other Myr you control.
  5. 5Repeat.
Myr Galvanizer
+Iron Myr
+Splinter Twin
#3

Myr Galvanizer + Iron Myr + Splinter Twin

Infinite creature tokens with hasteInfinite creature ETBInfinite untap of Myr you control
  1. 1Activate Myr Galvanizer by tapping it, creating a token copy of itself with haste.
  2. 2Activate Iron Myr by tapping it, adding {R}.
  3. 3Activate the Myr Galvanizer token by paying {1} and tapping it, untapping each other Myr you control.
  4. 4Repeat.
03

Legal formats

modernlegacypaupervintagecommanderoathbreakerpaupercommanderduelpredhtlr
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