Card Codex

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17 May 2024: Card library updated.

Assert Authority

5UU · 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.

Similar cards

Color identity:
NameManaTypeText
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Nassari, Dean of Expression 3RRLegendary Creature — Efreet Shaman At the beginning of your upkeep, exile the top card of each opponent's library. Until end of turn, you may cast spells from among those exiled cards, and you may spend mana as though it were mana of any color to cast those spells. Whenever you cast a spell from exile, put a +1/+1 counter on Nassari, Dean of Expression. 4/4
Void Rend WUBInstant This spell can't be countered. Destroy target nonland permanent.
Thrumming Stone 5Legendary Artifact Spells you cast have ripple 4. (Whenever you cast a spell, you may reveal the top four cards of your library. You may cast spells with the same name as that spell from among the revealed cards without paying their mana costs. Put the rest on the bottom of your library.)
Flames of Moradin 2RRSorcery Destroy up to three target artifacts. Conjure a duplicate of each nontoken artifact destroyed this way into your hand. The duplicates perpetually gain "You may pay {R} rather than pay this spell's mana cost" and "At the beginning of your end step, sacrifice this artifact."
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