Card Codex

M:tG card similarity search

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
Biting-Palm Ninja 2BCreature — Human Ninja Ninjutsu {2}{B} Biting-Palm Ninja enters the battlefield with a menace counter on it. Whenever Biting-Palm Ninja deals combat damage to a player, you may remove a menace counter from it. When you do, that player reveals their hand and you choose a nonland card from it. Exile that card. 3/3
Accident-Prone Apprentice 1RCreature — Otter Wizard Whenever you cast a noncreature spell, Accident-Prone Apprentice perpetually gets +1/+1. This ability also triggers if Accident-Prone Apprentice is in exile. 1/1
Magosi, the Waterveil Land Magosi, the Waterveil enters the battlefield tapped. {T}: Add {U}. {U}, {T}: Put an eon counter on Magosi, the Waterveil. Skip your next turn. {T}, Remove an eon counter from Magosi, the Waterveil and return it to its owner's hand: Take an extra turn after this one.
Glimpse the Cosmos 1USorcery Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order. As long as you control a Giant, you may cast Glimpse the Cosmos from your graveyard by paying {U} rather than paying its mana cost. If you cast Glimpse the Cosmos this way and it would be put into your graveyard, exile it instead.
Spinning Darkness 4BBInstant You may exile the top three black cards of your graveyard rather than pay this spell's mana cost. Spinning Darkness deals 3 damage to target nonblack creature. You gain 3 life.
Dust of Moments 2WInstant Choose one — • Remove two time counters from each permanent and each suspended card. • Put two time counters on each permanent with a time counter on it and each suspended card.
Mockery of Nature 9Creature — Eldrazi Beast Emerge {7}{G} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, you may destroy target artifact or enchantment. 6/5
Battle Mammoth 3GGCreature — Elephant Trample Whenever a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card. Foretell {2}{G}{G} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.) 6/5
Decree of Annihilation 8RRSorcery Exile all artifacts, creatures, and lands from the battlefield, all cards from all graveyards, and all cards from all hands. Cycling {5}{R}{R} ({5}{R}{R}, Discard this card: Draw a card.) When you cycle Decree of Annihilation, destroy all lands.
Diabolic Servitude 3BEnchantment When Diabolic Servitude enters the battlefield, return target creature card from your graveyard to the battlefield. When the creature put onto the battlefield with Diabolic Servitude dies, exile it and return Diabolic Servitude to its owner's hand. When Diabolic Servitude leaves the battlefield, exile the creature put onto the battlefield with Diabolic Servitude.
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