Designed by angler Ed McCoy, the Amphibious Assault Fly is a frog pattern that was created for finding those trophy fish that are much amphibious at all hours of the day. With a foam head and articulated body, it displaces water and creates noise that draws strikes, while two cut legs give a realistic profile with all of the motion you need. McCoy's Amphibious Assault Fly is deadly on trout and smallmouth bass in dark or shallow-water conditions, but it's an equally safe bet anywhere you find frogs in the water.