Sire of Insanity {4}{B}{R}
Creature — Demon
At the beginning of each end step, each player discards their hand.
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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.
Narset, Jeskai Waymaster 85%
$0.23#11990
"At the beginning of your end step, you may discard your hand. If you do, draw cards equal to the number of spells you've cast this turn."