Denied!

Interrupt, U (1)
Play Denied! only as any opponent casts target spell. Name a card, then look at all cards in that player's hand. If the named card is in the player's hand, counter target spell.
"Don't worry about it. It happens to every mage sooner or later."
Illus. Quinton Hoover

Crystal Keep Rulings Summaries

• The spell that they are playing is not in their hand when you play Denied!. [Barclay 1998/08/13]
• All tournament formats have banned cards from Unglued.
• Note - Also see Unglued rulings, Rule 507.
• Note - This card was of type Interrupt and is now of type Instant. [D'Angelo 2000/03/09]

Format Legality	Banned in Vintage, Legacy, Extended, Standard
Printings (1/1)	Unglued (Common)