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Rules guide · Artifact Creature

Steelswarm OperatorHow it works & interactions with other cards

By the ManaCount desk· 4 min read· Edge of Eternities· August 1, 2025
Carte Magic Steelswarm Operator

Steelswarm Operator 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

Flying {T}: Add {U}. Spend this mana only to cast an artifact spell. {T}: Add {U}{U}. Spend this mana only to activate abilities of artifact sources.

How it works : Steelswarm Operator

Original English text — Wizards of the Coast / Scryfall

  1. #1· Wizards of the Coast

    An “artifact source” is any object with the card type artifact. This means you could spend the mana from Steelswarm Operator’s last ability to activate an ability of an artifact you control or an artifact card in your hand or graveyard, for example.

    No other card is named in this ruling.

02

Popular combos

Real combos played by the community, sorted by popularity.

Rex, Cyber-Hound
+Knacksaw Clique
+Steelswarm Operator
#1

Rex, Cyber-Hound + Knacksaw Clique + Steelswarm Operator

Exile each opponent's library
  1. 1Activate Rex using Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifact sources.
  2. 2Activate Rex using Knacksaw Clique's ability by paying {1}{U} and untapping it, exiling the top card of an opponent's library with the ability to play that card this turn.
  3. 3Repeat.
Steelswarm Operator
+Memnarch
+Freed from the Real
#2

Steelswarm Operator + Memnarch + Freed from the Real

Infinite blue mana that can only be spent to activate abilities of artifactsInfinite blue mana that can only be spent to cast artifact spells
  1. 1Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
  2. 2Activate Memnarch by paying {1}{U}{U}, causing Freed from the Real to become an artifact.
  3. 3Activate Freed from the Real by paying {U}, untapping Steelswarm Operator.
  4. 4Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
  5. 5Repeat from step 3.
Steelswarm Operator
+Encroaching Mycosynth
+Freed from the Real
#3

Steelswarm Operator + Encroaching Mycosynth + Freed from the Real

Infinite blue mana that can only be spent to activate abilities of artifactsInfinite blue mana that can only be spent to cast artifact spells
  1. 1Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
  2. 2Activate Freed from the Real by paying {U}, untapping Steelswarm Operator.
  3. 3Repeat.
Steelswarm Operator
+Liquimetal Torque
+Freed from the Real
#4

Steelswarm Operator + Liquimetal Torque + Freed from the Real

Infinite blue mana that can only be spent to activate abilities of artifactsInfinite blue mana that can only be spent to cast artifact spells
  1. 1Activate Liquimetal Torque by tapping it, causing Freed from the Real to become an artifact.
  2. 2Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
  3. 3Activate Freed from the Real by paying {U}, untapping Steelswarm Operator.
  4. 4Repeat from step 2.
Steelswarm Operator
+Memnarch
+Pemmin's Aura
#5

Steelswarm Operator + Memnarch + Pemmin's Aura

Infinite blue mana that can only be spent to activate abilities of artifactsInfinite blue mana that can only be spent to cast artifact spells
  1. 1Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
  2. 2Activate Memnarch by paying {1}{U}{U}, causing Pemmin's Aura to become an artifact.
  3. 3Activate Pemmin's Aura by paying {U}, untapping Steelswarm Operator.
  4. 4Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
  5. 5Repeat from step 3.
Steelswarm Operator
+Liquimetal Torque
+Pemmin's Aura
#6

Steelswarm Operator + Liquimetal Torque + Pemmin's Aura

Infinite blue mana that can only be spent to activate abilities of artifactsInfinite blue mana that can only be spent to cast artifact spells
  1. 1Activate Liquimetal Torque by tapping it, causing Pemmin's Aura to become an artifact.
  2. 2Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
  3. 3Activate Pemmin's Aura by paying {U}, untapping Steelswarm Operator.
  4. 4Repeat from step 2.
Steelswarm Operator
+Filigree Sages
+Training Grounds
#7

Steelswarm Operator + Filigree Sages + Training Grounds

Infinite mana artifacts you control can produceInfinite untap of artifacts you controlInfinite blue mana that can only be spent to activate abilities of artifactsInfinite blue mana that can only be spent to cast artifact spells
  1. 1Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
  2. 2Activate Filigree Sages by paying {U}, untapping Steelswarm Operator.
  3. 3Repeat.
Steelswarm Operator
+Liquimetal Coating
+Freed from the Real
#8

Steelswarm Operator + Liquimetal Coating + Freed from the Real

Infinite blue mana that can only be spent to activate abilities of artifactsInfinite blue mana that can only be spent to cast artifact spells
  1. 1Activate Liquimetal Coating by tapping it, causing Freed from the Real to become an artifact.
  2. 2Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
  3. 3Activate Freed from the Real by paying {U}, untapping Steelswarm Operator.
  4. 4Repeat from step 2.
03

Legal formats

standardfuturehistorictimelessgladiatorpioneermodernlegacyvintagecommanderoathbreakerstandardbrawlbrawlcompetitivebrawlalchemydueltlr
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