Dubious Challenge 
Sorcery
$0.09 #25792 0.73 9.9 years
Look at the top ten cards of your library, exile up to two creature cards from among them, then shuffle. Target opponent may choose one of the exiled cards and put it onto the battlefield under their control. Put the rest onto the battlefield under your control.
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Cards similar to Dubious Challenge 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.
Animal Magnetism82%
$0.18↑#243650.27↓23.9 years↑
"Reveal the top five cards of your library. An opponent chooses a creature card from among them. Put that card onto the battlefield and the rest into your graveyard."
Collected Company70%
$0.87↑#12471↑0.40↓11.4 years↑
"Look at the top six cards of your library. Put up to two creature cards with mana value 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in any order."