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Steelswarm Operator
Artifact Creature — Robot Soldier
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.
Mana cost
1
U
Mana value
2
Printings
From
$0.30
EDHREC rank
#9185
Buy
Formats
Standard
Legal
Pioneer
Legal
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
25 Jul 2025
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.

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