Defiling Daemogoth 


Creature — Demon
Menace
Whenever a creature you control deals combat damage to a player, you gain 1 life.
At the beginning of your end step, each opponent loses X life, where X is the amount of life you gained this turn.
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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.
Lunar Convocation 90%
$0.70#3040
"At the beginning of your end step, if you gained life this turn, each opponent loses 1 life."
Indulging Patrician 86%
$0.31#4218
"At the beginning of your end step, if you gained 3 or more life this turn, each opponent loses 3 life."
Noble Purpose 84%
$0.67#15295
"Whenever a creature you control deals combat damage, you gain that much life."
God-Pharaoh's Statue 83%
$0.80#2398
"At the beginning of your end step, each opponent loses 1 life."
The Celestial Toymaker 83%
$30.39#16590
"At the beginning of each end step, each opponent loses 2 life for each spell or ability that caused one or more players to guess or to group cards or permanents into a pile this turn."
Vrock 82%
$0.20#16718
"At the beginning of your end step, if a permanent you controlled left the battlefield this turn, each opponent loses 3 life."
Warlock Class 82%
$0.15#6960
"At the beginning of your end step, if a creature died this turn, each opponent loses 1 life."
Great Unclean One 81%
$5.60#5110
"At the beginning of your end step, each opponent loses 2 life. Then for each opponent who has less life than you, create a 1/3 black Demon creature token named Plaguebearer of Nurgle."