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Common Courtesy

Card Name

Common Courtesy

Mana Cost

2

Type

Enchantment

Rarity

Uncommon

rules Text

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.

Flavor Text

"You didn't say the Magic word."

Not Legal Formats

Alchemy, Brawl, Commander, Explorer, Historic, Legacy, Modern, Pauper, Pioneer, Standard, Vintage

Rulings

(2/29/2020)
You do have to ask yourself permission to cast spells, although you can give yourself a one-time permission that applies to all future spells you cast.