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 Castle84%
$0.15↓#14745↓0.06↓17.3 years↑
": Add ."
utility-land, sacrifice-self, activated-ability
Foundry of the Consuls84%
$0.16↓#9819↓0.03↓11.3 years↑
": Add ."
utility-land, sacrifice-self, activated-ability
Spawning Bed84%
$0.28↑#4729↓0.0811.0 years↑
": Add ."
utility-land, sacrifice-self, activated-ability
Vitu-Ghazi, the City-Tree82%
$0.15↓#8437↓0.07↓21.0 years↑
": Add ."
utility-land, mana-sink, activated-ability
Grove of the Guardian82%
$0.27#9763↓0.0814.0 years↑
": Add ."
utility-land, sacrifice-self, activated-ability
Cradle of the Accursed82%
$0.20↓#9279↓0.06↓9.5 years↑
": Add ."
utility-land, sacrifice-self, activated-ability
Nephalia Drownyard82%
$0.33↑#33920.1015.1 years↑
": Add ."
utility-land, mana-sink, mill-self
Duskmantle, House of Shadow82%
$0.20↓#12561↓0.0821.0 years↑
": Add ."
utility-land, mana-sink, mill-self
Prahv, Spires of Order81%
$0.30↑#18069↓0.1120.5 years↑
": Add ."
utility-land, mana-sink, activated-ability
Blighted Fen80%
$0.14↓#12601↓0.05↓11.0 years↑
": Add ."
utility-land, sacrifice-self, activated-ability
Throne of the High City80%
$0.23↓#42900.06↓10.1 years↑
": Add ."
utility-land, sacrifice-self, activated-ability
Tocasia's Dig Site80%
$0.23↓#6335↓0.04↓3.9 years↑
": Add ."
utility-land, mana-sink, mill-self
Acolyte of Affliction80%
$0.14↓#13700↓0.00↓6.7 years↑
"When this creature enters, mill two cards, then you may return a permanent card from your graveyard to your hand."