Thought Erasure 

Sorcery
Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.
Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
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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.
Dark Inquiry 100%
$0.10#24651
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
Pilfer 100%
$0.15#8853
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
The Torment of Gollum 100%
$0.12#13783
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card."