Harrier Strix {U}
Creature — Bird
Flying
When this creature enters, tap target permanent.
{2}{U}: Draw a card, then discard a card.
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Cards that do something similar 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.
Soulcipher Board // Cipherbound Spirit 95%
$0.08#23451
"{3}{U}: Draw two cards, then discard a card."
+1 more matching line
Flying Drone 87%
$0.28#30328
"{1}{U}, {T}: Draw a card, then discard a card. This ability costs {1}{U} less to activate if another creature with flying entered under your control this turn."
Leonardo da Vinci 86%
$0.59#10902
"{2}{U}, {T}: Draw a card, then discard a card. If the discarded card was an artifact card, exile it from your graveyard. If you do, create a token that's a copy of it, except it's a 0/2 Thopter artifact creature with flying in addition to its other types."