Case of the Crimson Pulse 

Enchantment — Case
$0.31 #13110 0.05 2.6 years
When this Case enters, discard a card, then draw two cards.
To solve — You have no cards in hand. (If unsolved, solve at the beginning of your end step.)
Solved — At the beginning of your upkeep, discard your hand, then draw two cards.
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Cards similar to Case of the Crimson Pulse 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.
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"When this creature enters, if it was kicked, discard your hand, then draw two cards."
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"When this Equipment enters, you may discard a card. If you do, draw two cards."
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$0.32↑#2897↑0.133.8 years↑
"When this enchantment enters, you may discard a card. If you do, draw two cards."
Melded Moxite82%
$0.28↓#9239↑0.111.1 years↓
"When this artifact enters, you may discard a card. If you do, draw two cards."
Abandon Attachments82%
$0.31#3728↑0.000.8 years↓
"You may discard a card. If you do, draw two cards."
Hearth Elemental // Stoke Genius81%
$0.31#151740.003.0 years
"Discard your hand, then draw two cards."
Vaultguard Trooper80%
$0.09↓#24540↓0.101.1 years↓
"At the beginning of your end step, if you control two or more tapped creatures, you may discard your hand. If you do, draw two cards."
Bedlam Reveler80%
$0.19↓#138890.33↑10.1 years↑
"When this creature enters, discard your hand, then draw three cards."
Rix Maadi Reveler80%
$0.22↓#22047↓0.007.6 years↑
"When this creature enters, discard a card, then draw a card. If this creature's spectacle cost was paid, instead discard your hand, then draw three cards."
Kickoff Celebrations78%
$0.20↓#105410.131.6 years↓
"When this enchantment enters, you may discard a card. If you do, draw two cards."
Phyrexian Dragon Engine77%
$0.92↑#8383↑0.003.8 years↑
"When this creature enters from your graveyard, you may discard your hand. If you do, draw three cards."
Fugitive Codebreaker77%
$0.15↓#18871↓0.22↑2.6 years
"When this creature is turned face up, discard your hand, then draw three cards."
Invasion of Mercadia // Kyren Flamewright76%
$0.25↓#119530.37↑3.4 years
"When this Siege enters, you may discard a card. If you do, draw two cards."
Ox of Agonas76%
$0.57↑#9694↑0.076.6 years↑
"When this creature enters, discard your hand, then draw three cards."
Cavalier of Flame76%
$2.18↑#6670↑0.44↑7.2 years↑
"When this creature enters, discard any number of cards, then draw that many cards."