Shadow of Doubt

Instant, {U/B}{U/B} (2)
({U/B} can be paid with either {U} or {B}.)
Players can't search libraries this turn.
Draw a card.¹
Your ignorance is my bliss.
- Szadek
Illus. Greg Staples

Gatherer Card Rulings [Nov 2009]

• 10/1/2005: If an effect says "You may search your library . . . If you do, shuffle your library," you can't choose to search since it's impossible, and you won't shuffle.
• 10/1/2005: If an effect says "Search your library . . . Then shuffle your library," the search effect fails, but you will have to shuffle.
• 10/1/2005: Since players can't search, players won't be able to find any cards in a library. The effect applies to all players and all libraries. If a spell or ability's effect has other parts that don't depend on searching for or finding cards, they will still work normally.
• 10/1/2005: Effects that tell a player to reveal cards from a library or look at cards from the top of a library will still work. Only effects that use the word "search" will fail.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/9)	Ravnica: City of Guilds (Rare)