Prismari Pledgemage 

Creature — Orc Wizard
Defender
Magecraft — Whenever you cast or copy an instant or sorcery spell, this creature can attack this turn as though it didn't have defender.
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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.
Piston-Fist Cyclops 93%
$0.03#28171
"As long as you've cast an instant or sorcery spell this turn, this creature can attack as though it didn't have defender."
+1 more matching line