Malboro {4}{B}{B}
Creature — Plant Horror
Bad Breath — When this creature enters, each opponent discards a card, loses 2 life, and exiles the top three cards of their library.
Swampcycling {2} ({2}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)
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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.
Dusk Mangler 94%
$0.25#10070
"When this creature enters, each opponent sacrifices a creature of their choice, discards a card, and loses 4 life."
Dominator Drone 90%
$0.06#22225
"When this creature enters, if you control another colorless creature, each opponent loses 2 life."
Netherborn Phalanx 88%
$0.93#15551
"When this creature enters, each opponent loses 1 life for each creature they control."
Malakir Bloodwitch 87%
$5.33#3471
"When this creature enters, each opponent loses life equal to the number of Vampires you control. You gain life equal to the life lost this way."
Bellowing Saddlebrute 87%
$0.08#29037
"When this creature enters, you lose 4 life unless you attacked this turn."
Fathom Fleet Boarder 86%
$0.05#28022
"When this creature enters, you lose 2 life unless you control another Pirate."
Gray Merchant of Asphodel 85%
$5.69#242
"When this creature enters, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way."
Grim Servant 85%
$0.28#3957
"When this creature enters, search your library for a card with mana value less than or equal to your devotion to black, reveal it, put it into your hand, then shuffle. You lose 3 life."
Grim Guardian 84%
$0.37#3169
"Whenever this creature or another enchantment you control enters, each opponent loses 1 life."