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
Vivid Revival 4GSorcery Return up to three target multicolored cards from your graveyard to your hand. Exile Vivid Revival.
Shrine of Loyal Legions 2Artifact At the beginning of your upkeep or whenever you cast a white spell, put a charge counter on Shrine of Loyal Legions. {3}, {T}, Sacrifice Shrine of Loyal Legions: Create a 1/1 colorless Phyrexian Myr artifact creature token for each charge counter on Shrine of Loyal Legions.
Mirror of Fate 5Artifact {T}, Sacrifice Mirror of Fate: Choose up to seven face-up exiled cards you own. Exile all the cards from your library, then put the chosen cards on top of your library.
Mountain Titan 2BRCreature — Giant {1}{R}{R}: Until end of turn, whenever you cast a black spell, put a +1/+1 counter on Mountain Titan. 2/2
Fearsome Awakening 4BSorcery Return target creature card from your graveyard to the battlefield. If it's a Dragon, put two +1/+1 counters on it.
Tidewalker 2UCreature — Elemental Tidewalker enters the battlefield with a time counter on it for each Island you control. Vanishing (At the beginning of your upkeep, remove a time counter from this creature. When the last is removed, sacrifice it.) Tidewalker's power and toughness are each equal to the number of time counters on it. */*
Vault 13: Dweller's Journey 3WEnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — For each player, exile up to one other target enchantment or creature that player controls until Vault 13 leaves the battlefield. II — You gain 2 life and scry 2. III — Return two cards exiled with Vault 13 to the battlefield under their owners' control and put the rest on the bottom of their owners' libraries.
Infested Roothold 4GCreature — Wall Defender (This creature can't attack.) Protection from artifacts Whenever an opponent casts an artifact spell, you may create a 1/1 green Insect creature token. 0/3
Psychomancer 1BArtifact Creature — Necron Wizard Flying Harbinger of Despair — Whenever Psychomancer or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, target opponent loses 1 life and you gain 1 life. 1/1
Rakavolver 2RCreature — Volver Kicker {1}{W} and/or {U} (You may pay an additional {1}{W} and/or {U} as you cast this spell.) If Rakavolver was kicked with its {1}{W} kicker, it enters the battlefield with two +1/+1 counters on it and with "Whenever Rakavolver deals damage, you gain that much life." If Rakavolver was kicked with its {U} kicker, it enters the battlefield with a +1/+1 counter on it and with flying. 2/2
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