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.
Arcane Epiphany 96%
$0.14#11515
"This spell costs {1} less to cast if you control a Wizard."
Wizard's Retort 96%
$0.28#4748
"This spell costs {1} less to cast if you control a Wizard."
Academy Journeymage 96%
$0.07#21830
"This spell costs {1} less to cast if you control a Wizard."