Card Codex

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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
Swarm Shambler GCreature — Fungus Beast Swarm Shambler enters the battlefield with a +1/+1 counter on it. Whenever a creature you control with a +1/+1 counter on it becomes the target of a spell an opponent controls, create a 1/1 green Insect creature token. {1}, {T}: Put a +1/+1 counter on Swarm Shambler. 0/0
Shrine of Piercing Vision 2Artifact At the beginning of your upkeep or whenever you cast a blue spell, put a charge counter on Shrine of Piercing Vision. {T}, Sacrifice Shrine of Piercing Vision: Look at the top X cards of your library, where X is the number of charge counters on Shrine of Piercing Vision. Put one of those cards into your hand and the rest on the bottom of your library in any order.
Great Hall of the Citadel Land {T}: Add {C}. {1}, {T}: Add two mana in any combination of colors. Spend this mana only to cast legendary spells.
Mistcutter Hydra XGCreature — Hydra This spell can't be countered. Haste, protection from blue Mistcutter Hydra enters the battlefield with X +1/+1 counters on it. 0/0
Thunder Salvo 1RInstant Thunder Salvo deals X damage to target creature, where X is 2 plus the number of other spells you've cast this turn.
Painful Bond 1BInstant Draw two cards, then nonland cards in your hand with mana value 3 or less perpetually gain "When you cast this spell, you lose 1 life."
Geological Appraiser 2RRCreature — Human Artificer When Geological Appraiser enters the battlefield, if you cast it, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.) 3/2
Visions of Dominance 2GSorcery Put a +1/+1 counter on target creature, then double the number of +1/+1 counters on it. Flashback {8}{G}{G}. This spell costs {X} less to cast this way, where X is the greatest mana value of a commander you own on the battlefield or in the command zone. (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Retromancer 2RRCreature — Viashino Shaman Whenever Retromancer becomes the target of a spell or ability, Retromancer deals 3 damage to that spell or ability's controller. 3/3
Rusko, Clockmaker 2UBLegendary Creature — Human Artificer When Rusko, Clockmaker enters the battlefield, conjure a card named Midnight Clock onto the battlefield. Whenever you cast a noncreature spell, put an hour counter on each permanent you control named Midnight Clock. Each opponent loses 1 life and you gain 1 life. 3/3
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