Shadow, Mysterious Assassin {2}{B}
Legendary Creature — Human Assassin
Deathtouch
Throw — Whenever Shadow deals combat damage to a player, you may sacrifice another nonland permanent. If you do, draw two cards and each opponent loses life equal to the mana value of the sacrificed permanent.
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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.
Martyr's Bond 85%
$1.04#10476
"Whenever this enchantment or another nonland permanent you control is put into a graveyard from the battlefield, each opponent sacrifices a permanent of their choice that shares a card type with it."
Michiko Konda, Truth Seeker 81%
$8.71#5904
"Whenever a source an opponent controls deals damage to you, that player sacrifices a permanent of their choice."
Fatal Grudge 80%
$0.18#11727
"Each opponent chooses a permanent they control that shares a card type with the sacrificed permanent and sacrifices it."