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.
Plasmancer 95%
$0.35#13666
"When this creature enters, search your library for a basic Swamp card, reveal it, put it into your hand, then shuffle."
Dread Shade 100%
$0.28#22757
"{B}: This creature gets +1/+1 until end of turn."
Pardic Collaborator 100%
$0.09#31348
"{B}: This creature gets +1/+1 until end of turn."
Evernight Shade 100%
$0.22#18630
"{B}: This creature gets +1/+1 until end of turn."
Primeval Shambler 100%
$0.12#30303
"{B}: This creature gets +1/+1 until end of turn."
Nirkana Revenant 100%
$7.13#2848
"{B}: This creature gets +1/+1 until end of turn."
Fetid Horror 100%
$0.10#30025
"{B}: This creature gets +1/+1 until end of turn."
Nantuko Shade 100%
$0.26#21399
"{B}: This creature gets +1/+1 until end of turn."
Looming Shade 100%
$0.04#28140
"{B}: This creature gets +1/+1 until end of turn."
Hoar Shade 100%
$0.14#29804
"{B}: This creature gets +1/+1 until end of turn."
Crypt Ripper 100%
$0.13#28156
"{B}: This creature gets +1/+1 until end of turn."
Andradite Leech 100%
$0.31#29591
"{B}: This creature gets +1/+1 until end of turn."
Darkling Stalker 100%
$0.11#27793
"{B}: This creature gets +1/+1 until end of turn."
Undercity Shade 100%
$0.09#29622
"{B}: This creature gets +1/+1 until end of turn."
Balshan Collaborator 100%
$0.16#31659
"{B}: This creature gets +1/+1 until end of turn."
Cinder Shade 100%
$0.10#30790
"{B}: This creature gets +1/+1 until end of turn."
Cursed Ronin 100%
$0.12#26856
"{B}: This creature gets +1/+1 until end of turn."
Dungeon Shade 100%
#27252
"{B}: This creature gets +1/+1 until end of turn."
Gateway Shade 100%
$0.22#22733
"{B}: This creature gets +1/+1 until end of turn."
Drifting Shade 100%
$0.06#28608
"{B}: This creature gets +1/+1 until end of turn."