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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
Scholar of the Lost Trove 5UUCreature — Sphinx Flying When Scholar of the Lost Trove enters the battlefield, you may cast target instant, sorcery, or artifact card from your graveyard without paying its mana cost. If an instant or sorcery spell cast this way would be put into your graveyard, exile it instead. 5/5
Ashiok, Nightmare Muse 3UBLegendary Planeswalker — Ashiok [+1]: Create a 2/3 blue and black Nightmare creature token with "Whenever this creature attacks or blocks, each opponent exiles the top two cards of their library." [−3]: Return target nonland permanent to its owner's hand, then that player exiles a card from their hand. [−7]: You may cast up to three spells from among face-up cards your opponents own from exile without paying their mana costs. Loyalty 5
Pursuit of Knowledge 3WEnchantment If you would draw a card, you may put a study counter on Pursuit of Knowledge instead. Remove three study counters from Pursuit of Knowledge, Sacrifice Pursuit of Knowledge: Draw seven cards.
Mindcrank 2Artifact Whenever an opponent loses life, that player mills that many cards. (Damage causes loss of life.)
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Spectral Prison 1UEnchantment — Aura Enchant creature Enchanted creature doesn't untap during its controller's untap step. When enchanted creature becomes the target of a spell, sacrifice Spectral Prison.
Crystacean 3UCreature — Crab Flash 1/6
Phantasmal Image 1UCreature — Illusion You may have Phantasmal Image enter the battlefield as a copy of any creature on the battlefield, except it's an Illusion in addition to its other types and it has "When this creature becomes the target of a spell or ability, sacrifice it." 0/0
Defiant Greatmaw 2GCreature — Hippo When Defiant Greatmaw enters the battlefield, put two -1/-1 counters on target creature you control. Whenever you put one or more -1/-1 counters on Defiant Greatmaw, remove a -1/-1 counter from another target creature you control. 4/5
Mausoleum Wanderer UCreature — Spirit Flying Whenever another Spirit enters the battlefield under your control, Mausoleum Wanderer gets +1/+1 until end of turn. Sacrifice Mausoleum Wanderer: Counter target instant or sorcery spell unless its controller pays {X}, where X is Mausoleum Wanderer's power. 1/1
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