Widespread Panic 
Enchantment
$0.29 #23801 0.35 12.8 years
Whenever a spell or ability causes its controller to shuffle their library, that player puts a card from their hand on top of their library.
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Cards similar to Widespread Panic 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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"Target opponent puts the cards from their hand on top of their library. Search that player's library for that many cards. The player puts those cards into their hand, then shuffles."