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
Nettling Host 2WCreature — Phyrexian Horror Toxic 2 Corrupted — Exile Nettling Host from your graveyard: Conjure a card named Nettlecyst into your hand. Activate only if an opponent has three or more poison counters. 3/3
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Aria of Flame 2REnchantment When Aria of Flame enters the battlefield, each opponent gains 10 life. Whenever you cast an instant or sorcery spell, put a verse counter on Aria of Flame, then it deals damage equal to the number of verse counters on it to target player or planeswalker.
Seer of Stolen Sight 2BCreature — Phyrexian Warlock Menace (This creature can't be blocked except by two or more creatures.) Whenever one or more artifacts and/or creatures you control are put into a graveyard from the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) 2/3
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Mastermind Plum 2BLegendary Creature — Human Wizard Whenever Mastermind Plum attacks, exile up to one target card from a graveyard. If an artifact card was exiled this way, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") Whenever you cast a spell, if mana from a Treasure was spent to cast it, you draw a card and you lose 1 life. 2/2
Spike Worker 2GCreature — Spike Spike Worker enters the battlefield with two +1/+1 counters on it. {2}, Remove a +1/+1 counter from Spike Worker: Put a +1/+1 counter on target creature. 0/0
Frogmite 4Artifact Creature — Frog Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) 2/2
Channeler Initiate 1GCreature — Human Druid When Channeler Initiate enters the battlefield, put three -1/-1 counters on target creature you control. {T}, Remove a -1/-1 counter from Channeler Initiate: Add one mana of any color. 3/4
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