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

Featured print

Mirrodin

English · 2003-10-02

Browse alternate printings below, switch the featured art when one stands out, and open a larger preview without losing your place in the list.

Browse all printsOpen large preview

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 Apr 13, 2026 · 101,195 products cached

Add to your collection

Shop highlighted on TCGplayerJump to print prices

Legality snapshot

standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL

Prints & prices

Prices last synced Apr 13, 2026

Use preview for a closer look, then feature the print you want reflected in the main card view.

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.