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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
Biotransference 2BBEnchantment Creatures you control are artifacts in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield. Whenever you cast an artifact spell, you lose 1 life and create a 2/2 black Necron Warrior artifact creature token.
Admiral's Order 1UUInstant Raid — If you attacked this turn, you may pay {U} rather than pay this spell's mana cost. Counter target spell.
Skeleton Ship 3UBLegendary Creature — Skeleton When you control no Islands, sacrifice Skeleton Ship. {T}: Put a -1/-1 counter on target creature. 0/3
Imp's Mischief 1BInstant Change the target of target spell with a single target. You lose life equal to that spell's mana value.
Induce Despair 2BInstant As an additional cost to cast this spell, reveal a creature card from your hand. Target creature gets -X/-X until end of turn, where X is the revealed card's mana value.
Rakdos, the Muscle 2BBRLegendary Creature — Demon Mercenary Flying, trample Whenever you sacrifice another creature, exile cards equal to its mana value from the top of target player's library. Until your next end step, you may play those cards, and mana of any type can be spent to cast those spells. Sacrifice another creature: Rakdos, the Muscle gains indestructible until end of turn. Tap it. Activate only once each turn. 6/5
Sorcerous Squall 6UUUSorcery Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Target opponent mills nine cards, then you may cast an instant or sorcery spell from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead.
Access Denied 3UUInstant Counter target spell. Create X 1/1 colorless Thopter artifact creature tokens with flying, where X is that spell's mana value.
Tibalt's Trickery 1RInstant Counter target spell. Choose 1, 2, or 3 at random. Its controller mills that many cards, then exiles cards from the top of their library until they exile a nonland card with a different name than that spell. They may cast that card without paying its mana cost. Then they put the exiled cards on the bottom of their library in a random order.
Disruptive Student 2UCreature — Human Wizard {T}: Counter target spell unless its controller pays {1}. 1/1
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