Experiment One {G}
Creature — Human Ooze
Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Remove two +1/+1 counters from this creature: Regenerate it. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)
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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.
Spinal Parasite 90%
$0.21#26333
"Remove two +1/+1 counters from this creature: Remove a counter from target permanent."
Sawtooth Thresher 89%
$0.06#27837
"Remove two +1/+1 counters from this creature: It gets +4/+4 until end of turn."