Gibbering Descent 


Enchantment
At the beginning of each player's upkeep, that player loses 1 life and discards a card.
Hellbent — Skip your upkeep step if you have no cards in hand.
Madness {2}{B}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
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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.
Forsaken Wastes 88%
$14.85#14214
"At the beginning of each player's upkeep, that player loses 1 life."
Creeping Dread 85%
$0.19#14175
"At the beginning of your upkeep, each player discards a card. Each opponent who discarded a card that shares a card type with the card you discarded loses 3 life."
Nezumi Shortfang // Stabwhisker the Odious 84%
$2.29#15966
"At the beginning of each opponent's upkeep, that player loses 1 life for each card fewer than three in their hand."
+1 more matching line
Sarevok, Deathbringer 83%
$0.17#13864
"At the beginning of each player's end step, if no permanents left the battlefield this turn, that player loses X life, where X is this card's power."
Quest for the Nihil Stone 82%
$1.52#10315
"At the beginning of each opponent's upkeep, if that player has no cards in hand and this enchantment has two or more quest counters on it, you may have that player lose 5 life."
Smallpox 81%
$0.41#5492
"Each player loses 1 life, discards a card, sacrifices a creature of their choice, then sacrifices a land of their choice."
Psychic Purge 81%
#28115
"When a spell or ability an opponent controls causes you to discard this card, that player loses 5 life."
Forgotten Creation 80%
$0.26#3384
"At the beginning of your upkeep, you may discard all the cards in your hand. If you do, draw that many cards."