Crocanura is a common Creature — Crocodile Frog card from Gatecrash (GTC), collector number 116. Current market price: $0.11 (foil $0.43), TCGplayer market prices via Scryfall.
Reach (This creature can block creatures with 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.)