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.
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Hydrosurge 97%
$0.05#26428
"Target creature gets -5/-0 until end of turn."
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Shrink 97%
#28990
"Target creature gets -5/-0 until end of turn."
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Code of Constraint 97%
$0.08#26344
"Target creature gets -4/-0 until end of turn."
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Jace's Scrutiny 97%
$0.14#22272
"Target creature gets -4/-0 until end of turn."
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Befuddle 97%
$0.07#21524
"Target creature gets -4/-0 until end of turn."
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Arcane Subtraction 97%
$0.05#25624
"Target creature gets -4/-0 until end of turn."
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Obyra's Attendants // Desperate Parry 97%
$0.12#18898
"Target creature gets -4/-0 until end of turn."
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Depower 97%
$0.12#22822
"Target creature gets -4/-0 until end of turn."
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Disorient 96%
$0.04#31016
"Target creature gets -7/-0 until end of turn."
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Protect // Serve 96%
$0.08#28138
"Target creature gets -6/-0 until end of turn."
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Dark Deed 96%
$0.20#21658
"Target creature gets -4/-4 until end of turn."
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Lash of the Whip 96%
$0.04#28521
"Target creature gets -4/-4 until end of turn."
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Flatten 96%
$0.05#27993
"Target creature gets -4/-4 until end of turn."
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Sudden Death 96%
$0.12#18257
"Target creature gets -4/-4 until end of turn."
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Grasp of Darkness 96%
$0.13#11113
"Target creature gets -4/-4 until end of turn."
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Death Pulse 96%
$0.19#27188
"Target creature gets -4/-4 until end of turn."
+1 more matching line
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Whack 96%
$0.06#26685
"Target creature gets -4/-4 until end of turn."
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Throttle 96%
$0.06#28446
"Target creature gets -4/-4 until end of turn."
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Deceive the Messenger 96%
$0.14#14053
"Target creature gets -3/-0 until end of turn."
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Constricting Tendrils 96%
$0.03#28819
"Target creature gets -3/-0 until end of turn."