Torment of Scarabs 

Enchantment — Aura Curse
Enchant player
At the beginning of enchanted player's upkeep, that player loses 3 life unless they sacrifice a nonland permanent of their choice or discard a card.
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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.
Numbing Dose 91%
$0.08#28028
"At the beginning of the upkeep of enchanted permanent's controller, that player loses 1 life."
Power Taint 91%
$0.16#26035
"At the beginning of the upkeep of enchanted enchantment's controller, that player loses 2 life unless they pay {2}."
+1 more matching line
Stab Wound 90%
$0.20#8784
"At the beginning of the upkeep of enchanted creature's controller, that player loses 2 life."
+1 more matching line
Soul Bleed 88%
$0.06#27126
"At the beginning of the upkeep of enchanted creature's controller, that player loses 1 life."
+1 more matching line
One Thousand Lashes 88%
$0.11#19817
"At the beginning of the upkeep of enchanted creature's controller, that player loses 1 life."
+1 more matching line
Cruel Reality 87%
$2.78#9931
"At the beginning of enchanted player's upkeep, that player sacrifices a creature or planeswalker of their choice. If the player can't, they lose 5 life."
+1 more matching line
Withercrown 82%
$0.16#18491
"Enchanted creature has base power 0 and has "At the beginning of your upkeep, you lose 1 life unless you sacrifice this creature.""
+1 more matching line
Pillory of the Sleepless 82%
$0.26#18450
"Enchanted creature has "At the beginning of your upkeep, you lose 1 life.""
Mornsong Aria 81%
$0.41#11258
"At the beginning of each player's draw step, that player loses 3 life, searches their library for a card, puts it into their hand, then shuffles."
Maralen of the Mornsong 81%
$35.41#10080
"At the beginning of each player's draw step, that player loses 3 life, searches their library for a card, puts it into their hand, then shuffles."
Forsaken Wastes 81%
$14.85#14214
"At the beginning of each player's upkeep, that player loses 1 life."
Clawing Torment 81%
$0.15#8411
"Enchanted permanent has "At the beginning of your upkeep, you lose 1 life.""