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
Odds URInstant Flip a coin. If it comes up heads, counter target instant or sorcery spell. If it comes up tails, copy that spell and you may choose new targets for the copy.
Ashnod's Harvester 2Artifact Creature — Construct Whenever Ashnod's Harvester attacks, exile target card from a graveyard. Unearth {1}{B} ({1}{B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.) 3/1
Sphinx-Bone Wand 7Artifact Whenever you cast an instant or sorcery spell, you may put a charge counter on Sphinx-Bone Wand. If you do, Sphinx-Bone Wand deals damage equal to the number of charge counters on it to any target.
Ephemerate WInstant Exile target creature you control, then return it to the battlefield under its owner's control. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)
Mindbender Spores 2GCreature — Fungus Wall Defender (This creature can't attack.) Flying Whenever Mindbender Spores blocks a creature, put four fungus counters on that creature. The creature gains "This creature doesn't untap during your untap step if it has a fungus counter on it" and "At the beginning of your upkeep, remove a fungus counter from this creature." 0/1
Serra Paragon 2WWCreature — Angel Flying Once during each of your turns, you may play a land from your graveyard or cast a permanent spell with mana value 3 or less from your graveyard. If you do, it gains "When this permanent is put into a graveyard from the battlefield, exile it and you gain 2 life." 3/4
Stonecloaker 2WCreature — Gargoyle Flash Flying When Stonecloaker enters the battlefield, return a creature you control to its owner's hand. When Stonecloaker enters the battlefield, exile target card from a graveyard. 3/2
Kheru Lich Lord 3BGUCreature — Zombie Wizard At the beginning of your upkeep, you may pay {2}{B}. If you do, return a creature card at random from your graveyard to the battlefield. It gains flying, trample, and haste. Exile that card at the beginning of your next end step. If it would leave the battlefield, exile it instead of putting it anywhere else. 4/4
Now You See Me . . . WInstant Exile target creature you control, then return it to the battlefield under its owner's control with X +1/+1 counters on it, where X is the number of mirrors on walls you can see from your seat.
Exclusion Ritual 4WWEnchantment Imprint — When Exclusion Ritual enters the battlefield, exile target nonland permanent. Players can't cast spells with the same name as the exiled card.
Page 179