Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Common Courtesy

2UU · Enchantment

Whenever a player casts a spell without asking your permission while casting it, counter that spell. When a player asks you permission to cast a spell and you refuse, counter that spell and sacrifice Common Courtesy.

Similar cards

Color identity:
NameManaTypeText
Ominous Lockbox 1UArtifact — Clue As Ominous Lockbox enters the battlefield, secretly choose a number between 1 and 20. When an opponent casts a spell with mana value equal to the chosen number, sacrifice Ominous Lockbox. If you do, copy that spell, and you may choose new targets for the copy. {2}, Sacrifice Ominous Lockbox: Draw a card.
Devastating Dreams RRSorcery As an additional cost to cast this spell, discard X cards at random. Each player sacrifices X lands. Devastating Dreams deals X damage to each creature.
Kor Spiritdancer 1WCreature — Kor Wizard Kor Spiritdancer gets +2/+2 for each Aura attached to it. Whenever you cast an Aura spell, you may draw a card. 0/2
Flesh Allergy 2BBSorcery As an additional cost to cast this spell, sacrifice a creature. Destroy target creature. Its controller loses life equal to the number of creatures that died this turn.
Imoti, Celebrant of Bounty 3GULegendary Creature — Naga Druid Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.) Spells you cast with mana value 6 or greater have cascade. 3/1
Mogg Salvage 2RInstant If an opponent controls an Island and you control a Mountain, you may cast this spell without paying its mana cost. Destroy target artifact.
Predatory Advantage 3RGEnchantment At the beginning of each opponent's end step, if that player didn't cast a creature spell this turn, create a 2/2 green Lizard creature token.
Corpse Cobble UBInstant As an additional cost to cast this spell, sacrifice any number of creatures. Create an X/X blue and black Zombie creature token with menace, where X is the total power of the sacrificed creatures. Flashback {3}{U}{B} (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)
Spoils of War XBSorcery X is the number of artifact and/or creature cards in an opponent's graveyard as you cast this spell. Distribute X +1/+1 counters among any number of target creatures.
Bolas's Citadel 3BBBLegendary Artifact You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.
Page 114