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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
Spider Climb GEnchantment — Aura You may cast Spider Climb as though it had flash. If you cast it any time a sorcery couldn't have been cast, the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step. Enchant creature Enchanted creature gets +0/+3 and has reach. (It can block creatures with flying.)
Hatchery Sliver 1GCreature — Sliver Replicate {1}{G} (When you cast this spell, copy it for each time you paid its replicate cost.) Each Sliver spell you cast has replicate. The replicate cost is equal to its mana cost. (A copy of a permanent spell becomes a token.) 2/2
Tundra Fumarole 1RRSnow Sorcery Tundra Fumarole deals 4 damage to target creature or planeswalker. Add {C} for each {S} spent to cast this spell. Until end of turn, you don't lose this mana as steps and phases end. ({S} is mana from a snow source.)
Oath of Ajani GWLegendary Enchantment When Oath of Ajani enters the battlefield, put a +1/+1 counter on each creature you control. Planeswalker spells you cast cost {1} less to cast.
Ward of Bones 6Artifact Each opponent who controls more creatures than you can't cast creature spells. The same is true for artifacts and enchantments. Each opponent who controls more lands than you can't play lands.
Kaleidoscorch 1RSorcery Converge — Kaleidoscorch deals X damage to any target, where X is the number of colors of mana spent to cast this spell. Flashback {4}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Brilliant Spectrum 3USorcery Converge — Draw X cards, where X is the number of colors of mana spent to cast this spell. Then discard two cards.
Balefire Liege 2R/WR/WR/WCreature — Spirit Horror Other red creatures you control get +1/+1. Other white creatures you control get +1/+1. Whenever you cast a red spell, Balefire Liege deals 3 damage to target player or planeswalker. Whenever you cast a white spell, you gain 3 life. 2/4
Insidious Dreams 3BInstant As an additional cost to cast this spell, discard X cards. Search your library for X cards, then shuffle and put those cards on top in any order.
Spell Counter 2UUInstant Counter target spell. Gotcha — If an opponent says "spell" or "counter," you may say "Gotcha!" When you do, return Spell Counter from your graveyard to your hand.
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