Xantid Swarm 
Creature — Insect
$4.26 #14428 0.65 23.4 years
Flying
Whenever this creature attacks, defending player can't cast spells this turn.
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Cards similar to Xantid Swarm 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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+1 more matching line
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