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.
Gargoyle Castle94%
$0.15↓#14745↓0.0617.3 years↑
": Add ."
utility-land, sacrifice-self, activated-ability
Foundry of the Consuls94%
$0.16↓#9819↓0.0311.3 years
": Add ."
utility-land, sacrifice-self, activated-ability
Blighted Fen88%
$0.14↓#12601↓0.0511.0 years
": Add ."
utility-land, sacrifice-self, activated-ability
Gates of Istfell86%
$0.22#13806↓0.025.7 years↓
", , Sacrifice this land: You gain 2 life and draw two cards."