Card Codex

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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
Essence Bottle 2Artifact {3}, {T}: Put an elixir counter on Essence Bottle. {T}, Remove all elixir counters from Essence Bottle: You gain 2 life for each elixir counter removed this way.
Force of Vigor 2GGInstant If it's not your turn, you may exile a green card from your hand rather than pay this spell's mana cost. Destroy up to two target artifacts and/or enchantments.
Noxious Hatchling 3B/GCreature — Elemental Noxious Hatchling enters the battlefield with four -1/-1 counters on it. Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever you cast a black spell, remove a -1/-1 counter from Noxious Hatchling. Whenever you cast a green spell, remove a -1/-1 counter from Noxious Hatchling. 6/6
Savage Stomp 2GSorcery This spell costs {2} less to cast if it targets a Dinosaur you control. Put a +1/+1 counter on target creature you control. Then that creature fights target creature you don't control. (Each deals damage equal to its power to the other.)
Declaration in Stone 1WSorcery Exile target creature and all other creatures its controller controls with the same name as that creature. That player investigates for each nontoken creature exiled this way.
A-Cobbled Lancer UCreature — Zombie Horse As an additional cost to cast this spell, exile a creature card from your graveyard. {1}{U}, Exile Cobbled Lancer from your graveyard: Draw a card. 3/3
Summoning Trap 4GGInstant — Trap If a creature spell you cast this turn was countered by a spell or ability an opponent controlled, you may pay {0} rather than pay this spell's mana cost. Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order.
Gaea's Gift 1GInstant Put a +1/+1 counter on target creature you control. It gains reach, trample, hexproof, and indestructible until end of turn. (It can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)
Nine Lives 1WWEnchantment Hexproof If a source would deal damage to you, prevent that damage and put an incarnation counter on Nine Lives. When there are nine or more incarnation counters on Nine Lives, exile it. When Nine Lives leaves the battlefield, you lose the game.
Endless Sands Land — Desert {T}: Add {C}. {2}, {T}: Exile target creature you control. {4}, {T}, Sacrifice Endless Sands: Return each creature card exiled with Endless Sands to the battlefield under its owner's control.
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