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
Fasting WEnchantment At the beginning of your upkeep, put a hunger counter on Fasting. Then destroy Fasting if it has five or more hunger counters on it. If you would begin your draw step, you may skip that step instead. If you do, you gain 2 life. When you draw a card, destroy Fasting.
Goblin Assault Team 3RCreature — Goblin Warrior Haste When Goblin Assault Team dies, put a +1/+1 counter on target creature you control. 4/1
Lobelia Sackville-Baggins 2BLegendary Creature — Halfling Citizen Flash Menace When Lobelia Sackville-Baggins enters the battlefield, exile target creature card from an opponent's graveyard that was put there from the battlefield this turn, then create X Treasure tokens, where X is the exiled card's power. 2/3
The Tenth Doctor 3URLegendary Creature — Time Lord Doctor Allons-y! — Whenever you attack, exile cards from the top of your library until you exile a nonland card. Put three time counters on it. If it doesn't have suspend, it gains suspend. Timey-Wimey — {7}: Time travel three times. Activate only as a sorcery. (For each suspended card you own and each permanent you control with a time counter on it, you may add or remove a time counter. Then do it two more times.) 3/5
Tidal Bore 1UInstant You may return an Island you control to its owner's hand rather than pay this spell's mana cost. You may tap or untap target creature.
Boromir, Warden of the Tower 2WLegendary Creature — Human Soldier Vigilance Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell. Sacrifice Boromir, Warden of the Tower: Creatures you control gain indestructible until end of turn. The Ring tempts you. 3/3
Phyrexian Etchings BBBEnchantment Cumulative upkeep {B} (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.) At the beginning of your end step, draw a card for each age counter on Phyrexian Etchings. When Phyrexian Etchings is put into a graveyard from the battlefield, you lose 2 life for each age counter on it.
Primeval Bounty 5GEnchantment Whenever you cast a creature spell, create a 3/3 green Beast creature token. Whenever you cast a noncreature spell, put three +1/+1 counters on target creature you control. Landfall — Whenever a land enters the battlefield under your control, you gain 3 life.
Murderous Rider 1BBCreature — Zombie Knight Lifelink When Murderous Rider dies, put it on the bottom of its owner's library. 2/3
Dream Halls 3UUEnchantment Rather than pay the mana cost for a spell, its controller may discard a card that shares a color with that spell.
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