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Assert Authority — Mirrodin Magic: The Gathering card
Magic: The Gathering · uncommonLive pricing

Assert Authority

Stable+3.0%
Mirrodin, 2003 · #30
Assert Authority's Near Mint price is up 6.3% ($0.02) over the past 30 days.
9h ago· Updated Oct 28, 2026
Card Details
TypeInstant
Mana Cost5UU
ArtistGreg Hildebrandt
Card TextAffinity for artifacts (This spell costs {1} 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.
Format Legality
ModernCommanderLegacyVintage
inkwell Fair Value™?· NM
$0.34
moderate
$0.18
$0.36
Condition?
Confidencemedium
Prices as ofOct 28
Normal—
Cheapest printing—
Set Price Alert

Why This Price

inkwell Estimate
Fair Value$0.34
Movement
7D Change+3.0% (+$0.01)
30D Change+6.3% (+$0.02)
Freshness
Prices as ofOct 28
Update cadenceDaily
Inkwell Fair Value$0.34NM · compare before you buy
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How much is Assert Authority worth?
The current Near Mint price for Assert Authority from Mirrodin (Magic: The Gathering) is $0.34. It has increased 3.0% over the past 7 days.
What set is Assert Authority from?
Assert Authority is from the Mirrodin set, released October 2003. It is a uncommon in Magic: The Gathering.
What rarity is Assert Authority?
Assert Authority is a uncommon card from Mirrodin in Magic: The Gathering.
How has the price of Assert Authority changed over the past 30 days?
Over the past 30 days, the Near Mint price of Assert Authority has risen 6.3% ($0.02) to $0.34.