Briar Patch {1}{G}{G}
Enchantment
Whenever a creature attacks you, it gets -1/-0 until end of turn.
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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.
Genestealer Locus 100%
$0.23#19693
"Whenever a creature attacks you, it gets -1/-0 until end of turn."
Silumgar, the Drifting Death 81%
$0.86#5138
"Whenever a Dragon you control attacks, creatures defending player controls get -1/-1 until end of turn."