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
Salt Road Quartermasters 2GCreature — Human Soldier Salt Road Quartermasters enters the battlefield with two +1/+1 counters on it. {2}{G}, Remove a +1/+1 counter from Salt Road Quartermasters: Put a +1/+1 counter on target creature. 1/1
Shimmer Myr 3Artifact Creature — Myr Flash You may cast artifact spells as though they had flash. 2/2
Counterbalance UUEnchantment Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.
Puncture Bolt 1RInstant Puncture Bolt deals 1 damage to target creature. Put a -1/-1 counter on that creature.
Ammit Eternal 2BCreature — Zombie Crocodile Demon Afflict 3 (Whenever this creature becomes blocked, defending player loses 3 life.) Whenever an opponent casts a spell, put a -1/-1 counter on Ammit Eternal. Whenever Ammit Eternal deals combat damage to a player, remove all -1/-1 counters from it. 5/5
Bind to Secrecy UBInstant Choose one — • Counter target noncreature spell. • Conjure a duplicate of target creature card in an opponent's graveyard into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." If there are five or more mana values among cards in your graveyard, draft a card from Bind to Secrecy's spellbook.
Alter Reality 1UInstant Change the text of target spell or permanent by replacing all instances of one color word with another. (This effect lasts indefinitely.) Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Arcbound Ravager 2Artifact Creature — Beast Sacrifice an artifact: Put a +1/+1 counter on Arcbound Ravager. Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.) 0/0
Sleight of Mind UInstant Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)
Consecrate 1W/BInstant Exile target card from a graveyard. Draw a card.
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