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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 this enchantment.
Abilities, attacks, weakness & resistance
Other cards from Unsanctioned
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Common Courtesy (UND 22) is an uncommon blue Enchantment from Unsanctioned that imposes a permission mechanic on spellcasting. It counters any spell cast without the caster asking the enchantment controller for permission, and if the controller refuses permission when asked the spell is countered and the enchantment is sacrificed. The card can shape multiplayer table interactions and politeness‑based bluffing around who must ask and grant permission to cast spells.
Catalog pricing data as of 18 Apr 2026, 00:47