Crackling Spellslinger {3}{R}{R}
Creature — Human Wizard
Flash
When this creature enters, if you cast it, the next instant or sorcery spell you cast this turn has storm. (When you cast that spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)
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Cards that do something similar 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.
Spectral Arcanist 86%
$0.24#12254
"When this creature enters, you may cast an instant or sorcery spell with mana value less than or equal to the number of Spirits you control from a graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead."
Oracle of Bones 82%
$0.27#17691
"When this creature enters, if tribute wasn't paid, you may cast an instant or sorcery spell from your hand without paying its mana cost."
Impulsivity 82%
$0.28#6414
"When this creature enters, you may cast target instant or sorcery card from a graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead."
Scholar of the Lost Trove 81%
$0.28#10197
"When this creature enters, you may cast target instant, sorcery, or artifact card from your graveyard without paying its mana cost. If an instant or sorcery spell cast this way would be put into your graveyard, exile it instead."
Chancellor of the Spires 80%
$0.40#13685
"When this creature enters, you may cast target instant or sorcery card from an opponent's graveyard without paying its mana cost."