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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
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Suspicious Detonation 4RSorcery This spell costs {3} less to cast if you've sacrificed an artifact this turn. This spell can't be countered. (This includes by the ward ability.) Suspicious Detonation deals 4 damage to target creature.
Chimeric Egg 3Artifact Whenever an opponent casts a nonartifact spell, put a charge counter on Chimeric Egg. Remove three charge counters from Chimeric Egg: Chimeric Egg becomes a 6/6 Construct artifact creature with trample until end of turn.
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Rite of Consumption 1BSorcery As an additional cost to cast this spell, sacrifice a creature. Rite of Consumption deals damage equal to the sacrificed creature's power to target player or planeswalker. You gain life equal to the damage dealt this way.
Sundering Stroke 6RSorcery Sundering Stroke deals 7 damage divided as you choose among one, two, or three targets. If at least seven red mana was spent to cast this spell, instead Sundering Stroke deals 7 damage to each of those permanents and/or players.
Guile 3UUUCreature — Elemental Incarnation Guile can't be blocked except by three or more creatures. If a spell or ability you control would counter a spell, instead exile that spell and you may play that card without paying its mana cost. When Guile is put into a graveyard from anywhere, shuffle it into its owner's library. 6/6
Slick Sequence URInstant Slick Sequence deals 2 damage to any target. If you've cast another spell this turn, draw a card.
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