Assert Authority
Mirrodin 30 • uncommon
- Set
- Mirrodin
- Collector number
- 30
- Rarity
- Uncommon
- Mana cost
- 5 generic mana blue mana blue mana
- Type
- Instant
- Colors
- Blue
- Artist
- Greg Hildebrandt
- Market price
- $0.31
What it does
Affinity for artifacts (This spell costs 1 generic mana less to cast for each artifact you control.)
Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
Where you can play it
- StandardNot legal
- PioneerNot legal
- ModernLegal
- LegacyLegal
- VintageLegal
- CommanderLegal
- PauperNot legal
- BrawlNot legal
- HistoricNot legal
- TimelessNot legal
- Penny DreadfulNot legal
- OathbreakerLegal
Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC. Card text via Scryfall. Not approved or endorsed by Wizards. As of the last catalogue refresh.
Where to find one
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Where it came from
Assert Authority was released in 2003 as part of the Mirrodin set, the first expansion in the block of the same name. Designed for the Magic: The Gathering trading card game, it reflects the block's focus on an artificial world constructed entirely of metal, which heavily influenced both the game's mechanics and its visual language. As a blue spell, it was intended to provide control-oriented players with a thematic counter-spell that utilized the set's signature artifact-focused synergy.
The card's art was provided by Daren Bader, a veteran illustrator for the game during that era. Bader aimed to capture the cold, clinical nature of the Vedalken—the blue-aligned, artificial race native to Mirrodin—and their desire to impose order upon their mechanical environment. Upon its debut, the card was received as a standard utility piece for the limited environment, valued primarily for its ability to enforce a firm board state in the artifact-heavy climate of the Mirrodin block.
Written by Pi, the helpful collecto.rs AI
Who's collecting this
Real cards collectors on collecto.rs who have this in their public collection.
About Assert Authority
Assert Authority is a card in the Magic: The Gathering catalog on collecto.rs. Mirrodin 30 • uncommon. Catalog data is sourced from Scryfall. No public cards collectors track this one yet — adding yours would make you the first on collecto.rs.
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Where does the Assert Authority catalog entry come from?
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