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
Semester's End 3WInstant Exile any number of target creatures and/or planeswalkers you control. At the beginning of the next end step, return each of them to the battlefield under its owner's control. Each of them enters the battlefield with an additional +1/+1 counter on it if it's a creature and an additional loyalty counter on it if it's a planeswalker.
Cabal Ritual 1BInstant Add {B}{B}{B}. Threshold — Add {B}{B}{B}{B}{B} instead if seven or more cards are in your graveyard.
Stealth Mission 2USorcery Put two +1/+1 counters on target creature you control. That creature can't be blocked this turn.
Charforger 1BRCreature — Phyrexian Beast When Charforger enters the battlefield, create a 1/1 red Phyrexian Goblin creature token. Whenever another creature or artifact you control is put into a graveyard from the battlefield, put an oil counter on Charforger. Remove three oil counters from Charforger: Exile the top card of your library. You may play that card this turn. 2/3
Astral Confrontation 4WInstant This spell costs {1} less to cast for each opponent you're attacking. Exile target creature.
Rite of Replication 2UUSorcery Kicker {5} (You may pay an additional {5} as you cast this spell.) Create a token that's a copy of target creature. If this spell was kicked, create five of those tokens instead.
Toxrill, the Corrosive 5BBLegendary Creature — Slug Horror At the beginning of each end step, put a slime counter on each creature you don't control. Creatures you don't control get -1/-1 for each slime counter on them. Whenever a creature you don't control with a slime counter on it dies, create a 1/1 black Slug creature token. {U}{B}, Sacrifice a Slug: Draw a card. 7/7
Collector's Cage 1WArtifact Hideaway 5 (When this artifact enters the battlefield, look at the top five cards of your library, exile one face down, then put the rest on the bottom in a random order.) {1}, {T}: Put a +1/+1 counter on target creature you control. Then if you control three or more creatures with different powers, you may play the exiled card without paying its mana cost.
Mercurial Spelldancer 1UCreature — Phyrexian Rogue Mercurial Spelldancer can't be blocked. Whenever you cast a noncreature spell, put an oil counter on Mercurial Spelldancer. Whenever Mercurial Spelldancer deals combat damage to a player, you may remove two oil counters from it. If you do, when you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy. 2/1
Synod Artificer 2UCreature — Vedalken Artificer {X}, {T}: Tap X target noncreature artifacts. {X}, {T}: Untap X target noncreature artifacts. 1/2
Page 252