Digger Crayfish

Islandwalk:(This creature can't be blocked
as long as defending player controls an Island.)
{1}Burrow: Digger Crayfish gains +0/+3 and
defender until the end of the turn.
Their fairly large burrows have been found to provide habitat for at least two endangered species: the Hine's emerald dragonfly and the small Eastern massasauga rattlesnake.