Skull Raid 

Sorcery
Target opponent discards two cards. If fewer than two cards were discarded this way, you draw cards equal to the difference.
Foretell {1}{B} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
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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.
Psychic Whorl 92%
$0.08#15239
"Target opponent discards two cards. Then if you control a Rat, surveil 2."
Eriette's Whisper 89%
$0.18#21311
"Target opponent discards two cards. Create a Wicked Role token attached to up to one target creature you control."
No Way Out 87%
$0.10#19359
"Target opponent discards two cards. You create a 2/2 black Zombie creature token with decayed."