Hauntwoods Shrieker 
Creature — Beast Mutant
$0.80 #5877 0.16 2.1 years
Whenever this creature attacks, manifest dread. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)
: Reveal target face-down permanent. If it's a creature card, you may turn it face up.Click a line or tag to filter
Cards similar to Hauntwoods Shrieker expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
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"
: Turn target face-down creature face up."
: Turn target face-down creature face up."
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"
: Look at target face-down creature."
: Look at target face-down creature."
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": Look at target face-down creature."
: Look at target face-down creature."
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"
: Turn target face-down attacking creature you control face up."
: Turn target face-down attacking creature you control face up."
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": Turn target face-down creature you control face up. At the beginning of the next end step, sacrifice it."
: Turn target face-down creature you control face up. At the beginning of the next end step, sacrifice it."
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": Until end of turn, you may look at face-down creatures you don't control any time."
: Until end of turn, you may look at face-down creatures you don't control any time."
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"Turn target face-down creature an opponent controls face up."
Zimone, Mystery Unraveler71%
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"Whenever a land you control enters, manifest dread if this is the first time this ability has resolved this turn. Otherwise, you may turn a permanent you control face up."