Steelscale Crushfish is an obscure weapon is obtained from fishing, however it is very, very rare. It has been known to be caught in Wetlands and Hillsbrad Foothills. One of the highest chances you might have to catch this fish is to cast off of the dock in Southshore. One player has caught two there in less then 10 minutes, but there is no guarantee you will have such luck. It resembles a fish when equipped.