Memory Sluice {U/B}
Sorcery
Target player mills four cards.
Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)
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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.
Coerced Confession 97%
$0.07#23099
"Target player mills four cards. You draw a card for each creature card put into their graveyard this way."
Stream of Thought 97%
$0.20#15399
"Target player mills four cards. You shuffle up to four cards from your graveyard into your library."
Increasing Confusion 84%
$0.86#9714
"Target player mills X cards. If this spell was cast from a graveyard, that player mills twice that many cards instead."