Shanna, Purifying Blade {G}{W}{U}
Legendary Creature — Human Warrior
Lifelink
At the beginning of your end step, you may pay {X}. If you do, draw X cards. X can't be greater than the amount of life you gained this turn.
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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.
Markov Purifier 81%
$0.26#8397
"At the beginning of your end step, if you gained life this turn, you may pay {2}. If you do, draw a card."
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