Darwin, Adaptive Mutant 

Legendary Creature — Mutant Hero
$0.29 #25547 0.15 0.3 years
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 Darwin: He gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy him.)
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Cards similar to Darwin, Adaptive Mutant 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.
Experiment One90%
$0.19↓#10594↑0.0713.8 years↑
"Remove two +1/+1 counters from this creature: Regenerate it."
+1 more matching line
Spike Hatcher80%
$0.49↑#291650.39↑28.3 years↑
"
, Remove a +1/+1 counter from this creature: Regenerate this creature."
+1 more matching line