Stigma Lasher {R}{R}
Creature — Elemental Shaman
Wither (This deals damage to creatures in the form of -1/-1 counters.)
Whenever this creature deals damage to a player, that player can't gain life for the rest of the game.
click a line to search just that ability, click more to combine them
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.
Stuffy Doll 81%
$6.19#2238
"Whenever this creature is dealt damage, it deals that much damage to the chosen player."