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
Furnace Skullbomb 1Artifact {1}, Sacrifice Furnace Skullbomb: Draw a card. {1}{R}, Sacrifice Furnace Skullbomb: Put two oil counters on target artifact or creature you control. Draw a card. Activate only as a sorcery.
Undying Beast 3BCreature — Beast When Undying Beast dies, put it on top of its owner's library. 3/2
Insidious Will 2UUInstant Choose one — • Counter target spell. • You may choose new targets for target spell. • Copy target instant or sorcery spell. You may choose new targets for the copy.
Myr Enforcer 7Artifact Creature — Myr Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) 4/4
Aboroth 4GGCreature — Elemental Cumulative upkeep—Put a -1/-1 counter on Aboroth. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) 9/9
The Golden Throne 4Legendary Artifact Arcane Life-support — If you would lose the game, instead exile The Golden Throne and your life total becomes 1. A Thousand Souls Die Every Day — {T}, Sacrifice a creature: Add three mana in any combination of colors.
Enduring Renewal 2WWEnchantment Play with your hand revealed. If you would draw a card, reveal the top card of your library instead. If it's a creature card, put it into your graveyard. Otherwise, draw a card. Whenever a creature is put into your graveyard from the battlefield, return it to your hand.
Bouncer's Beatdown 2GInstant This spell costs {2} less to cast if it targets a black permanent. Bouncer's Beatdown deals X damage to target creature or planeswalker, where X is the greatest power among creatures you control. If that creature or planeswalker would die this turn, exile it instead.
Singer of Swift Rivers 1GUCreature — Merfolk Shaman Flash When Singer of Swift Rivers enters the battlefield, put a shield counter on another target creature you control. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) You may cast Merfolk spells as though they had flash. 3/2
Arc Blade 3RRSorcery Arc Blade deals 2 damage to any target. Exile Arc Blade with three time counters on it. Suspend 3—{2}{R} (Rather than cast this card from your hand, you may pay {2}{R} and exile it with three 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.)
Page 172