Boggart Forager 
Creature — Goblin Rogue
{R}, Sacrifice this creature: Target player shuffles their library.
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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.
Minotaur Illusionist 89%
$0.24#31363
"{R}, Sacrifice this creature: It deals damage equal to its power to target creature."
Cinder Shade 89%
$0.10#30790
"{R}, Sacrifice this creature: It deals damage equal to its power to target creature."
Whirlpool Warrior 88%
$1.30#7036
"{R}, Sacrifice this creature: Each player shuffles the cards from their hand into their library, then draws that many cards."
Heartfire Immolator 87%
$0.19#14260
"{R}, Sacrifice this creature: It deals damage equal to its power to target creature or planeswalker."