Dogged Detective 

Creature — Human Rogue
When this creature enters, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Whenever an opponent draws their second card each turn, you may return this card from your graveyard to your hand.
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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.
Pure Intentions 81%
$0.34#28182
"When a spell or ability an opponent controls causes you to discard this card, return this card from your graveyard to your hand at the beginning of the next end step."
Infesting Radroach 81%
$2.78#4953
"Whenever an opponent mills a nonland card, if this creature is in your graveyard, you may return it to your hand."
Asgardian Inspiration 80%
$0.82#21859
"Whenever a source you control deals noncombat damage to an opponent, you may pay {2}. If you do, return this card from your graveyard to your hand."