Jhoira's Familiar 
Artifact Creature — Bird
$1.30 #1052 0.21 8.4 years
Flying
Historic spells you cast cost 
less to cast. (Artifacts, legendaries, and Sagas are historic.)
less to cast. (Artifacts, legendaries, and Sagas are historic.)Click a line or tag to filter
Cards similar to Jhoira's Familiar expected a card that isn't here?
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.
Ballad of the Black Flag94%
$0.34↓#6466↓0.242.2 years↓
"Historic spells you cast this turn cost 
less to cast."
less to cast."
Cloudsculpt Technician70%
$0.04↓#24549↓0.141.1 years↓
"Flying"