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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
Aether Gust 1UInstant Choose target spell or permanent that's red or green. Its owner puts it on the top or bottom of their library.
All Hallow's Eve 2BBSorcery Exile All Hallow's Eve with two scream counters on it. At the beginning of your upkeep, if All Hallow's Eve is exiled with a scream counter on it, remove a scream counter from it. If there are no more scream counters on it, put it into your graveyard and each player returns all creature cards from their graveyard to the battlefield.
Odds URInstant Flip a coin. If it comes up heads, counter target instant or sorcery spell. If it comes up tails, copy that spell and you may choose new targets for the copy.
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Viconia, Disciple of Arcana 1UBLegendary Creature — Elf Cleric When this creature specializes, choose up to one target creature card and up to one target instant or sorcery card from among cards exiled with this creature. Conjure a duplicate of each of those cards into your hand. The duplicates perpetually gain "You may spend mana as though it were mana of any color to cast this spell." {1}: Exile target card from a graveyard. 3/4
We Ride at Dawn 2WEnchantment Legendary creature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a legendary creature spell pays for {1} or one mana of that creature's color.) Whenever your commander attacks, create a 1/1 red Mercenary creature token with "{T}: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."
Bill Potts 3RLegendary Creature — Human Whenever you cast an instant or sorcery spell that targets only Bill Potts or activate an ability that targets only Bill Potts, copy that spell or ability. You may choose new targets for the copy. This ability triggers only once each turn. Doctor's companion (You can have two commanders if the other is the Doctor.) 2/4
Sakashima's Will 3USorcery Choose one. If you control a commander as you cast this spell, you may choose both. • Target opponent chooses a creature they control. You gain control of it. • Choose a creature you control. Each other creature you control becomes a copy of that creature until end of turn.
Flash Conscription 5RInstant Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn. If {W} was spent to cast this spell, the creature gains "Whenever this creature deals combat damage, you gain that much life" until end of turn.
Crash 2RInstant You may sacrifice a Mountain rather than pay this spell's mana cost. Destroy target artifact.
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