The streamer, greater than some other fly, can be tied to appeal to the fish’s hunger, anger, or curiosity it’s the tier’s choice. There is, of course, a big range of styles. By the way, those that do not imitate other minnows or baitfish are called “attractors. “Of the lot, Lefty’s Deceiver is doubtless the most famous, with credit for the design going to Lefty Kreh, world famous master angler and fly tier. The deceiver is an attractor that swims. Colorful, the deceiver works any place offered it is tied in a suitable size and properly fished.