Darwin, Adaptive Mutant is a uncommon Legendary Creature — Mutant Hero card from Marvel Super Heroes Commander (MSC), collector number 718. Current market price: $0.29 (foil $0.62), TCGplayer market prices via Scryfall.
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.)