Assert Authority {5}{U}{U}

Instant

Affinity 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.

SpotlightAssert Authority highlighted card art
MirrodinEnglish · 2003-10-02

Build a deck with this card

Load Deck Studio with Assert Authority, set power and land mix, then decide when to generate.

Open Deck StudioJump to build sectionNo auto-build—tune settings first
Prices synced Dec 9, 2025 · 97,674 products cached

Add to your collection

Shop highlighted on TCGplayerJump to print prices

Legality snapshot

standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL

Prints & prices

Prices last synced Dec 9, 2025

Tap any thumbnail to open a larger view while you compare print details and pricing.

Build with this commander

Exports a 100-card shell tuned for your table.
Launch Commander Deck StudioBrowse TCGplayer singles

Links to TCGplayer are affiliate links that may earn us a commission.