Borrowed Knowledge 
Sorcery
$0.20 #13255 0.00 0.4 years
Choose one —
• Discard your hand, then draw cards equal to the number of cards in target opponent's hand.
• Discard your hand, then draw cards equal to the number of cards discarded this way.
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Cards similar to Borrowed Knowledge 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.
Tolarian Winds88%
$1.09↑#3157↑0.24↑27.9 years↑
"Discard all the cards in your hand, then draw that many cards."
Change of Fortune88%
$0.43↑#5691↑0.33↑4.8 years↑
"Discard your hand, then draw a card for each card you've discarded this turn."
Shattered Perception88%
$0.28↑#135400.27↑14.6 years↑
"Discard all the cards in your hand, then draw that many cards."
Heartwarming Redemption88%
$0.26↑#117220.10↑7.3 years↑
"Discard all the cards in your hand, then draw that many cards plus one. You gain life equal to the number of cards in your hand."
Umaro, Raging Yeti85%
$0.13↓#126670.26↑1.2 years
"• Discard your hand, then draw four cards."
Decaying Time Loop84%
$0.44↑#7081↑0.42↑2.9 years↑
"Discard all the cards in your hand, then draw that many cards."
Collective Defiance84%
$0.17↓#7614↑0.13↑10.1 years↑
"• Target player discards all the cards in their hand, then draws that many cards."
+1 more matching line
Knollspine Dragon84%
$0.38↑#4454↑0.15↑18.3 years↑
"When this creature enters, you may discard your hand and draw cards equal to the damage dealt to target opponent this turn."
Forgotten Creation82%
$0.22↑#3427↑0.15↑10.4 years↑
"At the beginning of your upkeep, you may discard all the cards in your hand. If you do, draw that many cards."
Drastic Revelation82%
$0.13↓#27611↓0.44↑17.3 years↑
"Discard your hand. Draw seven cards, then discard three cards at random."
Book Devourer82%
$0.19↓#23549↓0.28↑7.9 years↑
"Whenever this creature deals combat damage to a player, you may discard all the cards in your hand. If you do, draw that many cards."
Narset, Jeskai Waymaster82%
$0.25↑#120120.23↑1.4 years↑
"At the beginning of your end step, you may discard your hand. If you do, draw cards equal to the number of spells you've cast this turn."
Fateful Showdown82%
$0.42↑#8739↑0.069.9 years↑
"this card deals damage to any target equal to the number of cards in your hand. Discard all the cards in your hand, then draw that many cards."
Dangerous Wager82%
$0.15↓#149930.20↑14.3 years↑
"Discard your hand, then draw two cards."
Steal the Show81%
$0.27↑#111010.000.4 years
"• Target player discards any number of cards, then draws that many cards."
+1 more matching line
Chandra, Flamecaller80%
$0.46↑#8811↑0.35↑10.6 years↑
"0: Discard all the cards in your hand, then draw that many cards plus one."
Windfall80%
$4.81↑#157↑0.84↑27.9 years↑
"Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way."
Peer Past the Veil79%
$0.14↓#118610.22↑1.9 years↑
"Discard your hand. Then draw X cards, where X is the number of card types among cards in your graveyard."
Slate of Ancestry79%
$0.32↑#10077↑0.28↑23.9 years↑
"
, 
, Discard your hand: Draw a card for each creature you control."
, , Discard your hand: Draw a card for each creature you control."
Astonishing Spider-Man79%
$0.65↑#19085↓0.000.2 years
"Whenever this card attacks, you may discard your hand. If you do, draw a card for each card you've discarded this turn."