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
Vitu-Ghazi Inspector 1GCreature — Elf Detective As an additional cost to cast this spell, you may collect evidence 6. (Exile cards with total mana value 6 or greater from your graveyard.) Reach When Vitu-Ghazi Inspector enters the battlefield, if evidence was collected, put a +1/+1 counter on target creature and you gain 2 life. 1/3
Nature's Blessing 2GWEnchantment {G}{W}, Discard a card: Put a +1/+1 counter on target creature or that creature gains banding, first strike, or trample. (This effect lasts indefinitely. Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)
Cling to Dust BInstant Exile target card from a graveyard. If it was a creature card, you gain 3 life. Otherwise, you draw a card. Escape—{3}{B}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)
Orim's Thunder 2WInstant Kicker {R} (You may pay an additional {R} as you cast this spell.) Destroy target artifact or enchantment. If this spell was kicked, it deals damage equal to that permanent's mana value to target creature.
Neurok Familiar 1UCreature — Bird Flying When Neurok Familiar enters the battlefield, reveal the top card of your library. If it's an artifact card, put it into your hand. Otherwise, put it into your graveyard. 1/1
Illuminate XRSorcery Kicker {2}{R} and/or {3}{U} (You may pay an additional {2}{R} and/or {3}{U} as you cast this spell.) Illuminate deals X damage to target creature. If this spell was kicked with its {2}{R} kicker, it deals X damage to that creature's controller. If this spell was kicked with its {3}{U} kicker, you draw X cards.
Mirror of Life Trapping 4Artifact Whenever a creature enters the battlefield, if it was cast, exile it, then return all other permanent cards exiled with Mirror of Life Trapping to the battlefield under their owners' control.
Illusory Angel 2UCreature — Angel Illusion Cast this spell only if you've cast another spell this turn. Flying 4/4
Chance Encounter 2RREnchantment Whenever you win a coin flip, put a luck counter on Chance Encounter. At the beginning of your upkeep, if Chance Encounter has ten or more luck counters on it, you win the game.
Watcher of Hours 5UCreature — Sphinx Flying, ward {3} Whenever you remove a time counter from Watcher of Hours while it's exiled, surveil 1. Suspend 6—{1}{U} (Rather than cast this card from your hand, you may pay {1}{U} and exile it with six time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.) 6/6
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