Metallic Mastery 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.
Official card text
Gain control of target artifact until end of turn. Untap that artifact. It gains haste until end of turn.
Complete guide
Metallic Mastery is a specialized red sorcery that lets you briefly turn an opponent's technology against them. By seizing control of a key artifact, you can disrupt their strategy and use their own resources to fuel your victory.
Seizing the Machine
When you cast Metallic Mastery, you target a single artifact on the battlefield. Upon resolution, you gain control of that artifact until the end of the current turn. The spell also untaps the artifact and grants it haste, ensuring that you can use its activated abilities or attack with it immediately if it happens to be an artifact creature.
The Resolution Process
First, select a legal target artifact. As the spell resolves, the control change occurs immediately. The artifact is then untapped, regardless of its previous state. Finally, the haste effect is applied, which is crucial if the artifact is a creature or becomes one later in the turn, as it bypasses 'summoning sickness'.
Timing and Strategy
Because Metallic Mastery is a sorcery, you can usually only cast it during your main phase. It is best used to steal powerful utility artifacts or mana rocks to accelerate your own plays. Remember that you lose control of the artifact during the cleanup step, so be sure to use its abilities before your turn ends.
Common Pitfalls
A common mistake is forgetting that Metallic Mastery only lasts for one turn. If you use a stolen artifact's ability that requires it to be sacrificed, the artifact goes to its owner's graveyard, not yours. Additionally, if the targeted artifact leaves the battlefield and returns, it is considered a new object and will return to its owner's control.
Interaction examples
Jeska's WillIf your opponent controls a mana-producing artifact like a Gilded Lotus, you can cast Metallic Mastery to steal and untap it. You can then tap that artifact for three red mana, providing the exact cost needed to cast Jeska's Will, potentially giving you even more mana or card advantage.
Wheel of FortuneImagine your opponent has a Memory Jar. You can cast Metallic Mastery to take control of it and untap it. Before your turn ends, you can sacrifice the Jar to force everyone to draw new cards. Afterward, you can cast Wheel of Fortune to discard those temporary hands and draw another seven cards, completely disrupting your opponents' plans.
Guide written with AI from the official text and rulings. Official English text prevails.
How it works : Metallic Mastery
Original English text — Wizards of the Coast / Scryfall
No additional ruling has been published for this card.
Legal formats
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Meta decks with Metallic Mastery
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