Ketramose, the New Dawn {1}{W}{B}
Legendary Creature — God
Menace, lifelink, indestructible
Ketramose can't attack or block unless there are seven or more cards in exile.
Whenever one or more cards are put into exile from graveyards and/or the battlefield during your turn, you draw a card and lose 1 life.
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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.
The Lion-Turtle 98%
$0.27#12455
"this card can't attack or block unless there are three or more Lesson cards in your graveyard."
Sab-Sunen, Luxa Embodied 94%
$2.27#5664
"this card can't attack or block unless it has an even number of counters on it."
Bast, Panther Goddess 90%
$2.79#17534
"this card can't attack or block unless you control three or more creatures."
Fang, Fearless l'Cie 85%
$0.21#6284
"Whenever one or more cards leave your graveyard, you draw a card and you lose 1 life. This ability triggers only once each turn."