Vivien, Champion of the Wilds {2}{G}
Legendary Planeswalker — Vivien
You may cast creature spells as though they had flash.
+1: Until your next turn, up to one target creature gains vigilance and reach.
−2: Look at the top three cards of your library. Exile one face down and put the rest on the bottom of your library in any order. For as long as it remains exiled, you may cast it if it's a creature spell.
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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.
Heliod, the Radiant Dawn // Heliod, the Warped Eclipse 91%
$2.56#3209
"You may cast spells as though they had flash."
The Blue Spirit 91%
$0.92#7773
"You may cast the first creature spell you cast each turn as though it had flash."
Scarring Memories 90%
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"You may cast this spell as though it had flash if you control an attacking legendary creature."
Teferi, Who Slows the Sunset 89%
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"−2: Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order."
+1 more matching line
Molten Exhale 88%
$0.15#13599
"You may cast this spell as though it had flash if you behold a Dragon as an additional cost to cast it."