False Cure {B}{B}
Instant
Until end of turn, whenever a player gains life, that player loses 2 life for each 1 life they gained.
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.