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.
Kor Haven91%
$17.86↑#3745↑0.28↑26.7 years↓
": Add ."
hate-attacker, utility-land, activated-ability
Gargoyle Castle91%
$0.15↑#147450.0617.3 years↓
": Add ."
utility-land, sacrifice-self, activated-ability
Foundry of the Consuls91%
$0.16↑#9819↑0.0311.3 years↓
": Add ."
utility-land, sacrifice-self, activated-ability
Blighted Cataract90%
$0.10↓#138090.0511.0 years↓
": Add ."
utility-land, sacrifice-self, activated-ability
Spawning Bed90%
$0.28↑#4729↑0.0811.0 years↓
": Add ."
utility-land, sacrifice-self, activated-ability
Blighted Fen89%
$0.14↑#12601↑0.0511.0 years↓
": Add ."
utility-land, sacrifice-self, spot-removal
Grasping Dunes87%
$0.31↑#7973↑0.119.5 years↓
", , Sacrifice this land: Put a -1/-1 counter on target creature. Activate only as a sorcery."
+1 more matching line
removal-toughness, utility-land, sacrifice-self
Cradle of the Accursed87%
$0.20↑#9279↑0.069.5 years↓
": Add ."
utility-land, sacrifice-self, activated-ability
Grove of the Guardian86%
$0.27↑#9763↑0.0814.0 years↓
": Add ."
utility-land, sacrifice-self, activated-ability
Skemfar Elderhall86%
$0.31↑#10479↑0.085.7 years↓
", , Sacrifice this land: Up to one target creature you don't control gets -2/-2 until end of turn. Create two 1/1 green Elf Warrior creature tokens. Activate only as a sorcery."