Archfiend of Despair 


Creature — Demon
Flying
Your opponents can't gain life.
At the beginning of each end step, each opponent loses life equal to the life that player lost this turn. (Damage causes loss of life.)
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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.
Wound Reflection 95%
$13.26#1935
"At the beginning of each end step, each opponent loses life equal to the life they lost this turn."
Warlock Class 93%
$0.15#6960
"At the beginning of your end step, each opponent loses life equal to the life they lost this turn."