Cloudfin Raptor is a common Creature — Bird Mutant card from Ravnica Remastered (RVR), collector number 310. Current market price: $0.26 (foil $0.26), TCGplayer market prices via Scryfall.
Flying 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.)