Forgotten Creation {3}{U}
Creature — Zombie Horror
Skulk (This creature can't be blocked by creatures with greater power.)
At the beginning of your upkeep, you may discard all the cards in your hand. If you do, draw that many cards.
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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.
Lim-Dûl's Paladin 84%
$0.26#28541
"At the beginning of your upkeep, you may discard a card. If you don't, sacrifice this creature and draw a card."
Gutwrencher Oni 82%
$0.21#24833
"At the beginning of your upkeep, discard a card if you don't control an Ogre."
Gigapede 81%
#20892
"At the beginning of your upkeep, if this card is in your graveyard, you may discard a card. If you do, return this card to your hand."
+1 more matching line
Enemy of Enlightenment 80%
$0.08#25476
"At the beginning of your upkeep, each player discards a card."