Simple

Ray's fly

It's a bucktail streamer with

6 strands of peacock herl over
12 hairs olive bucktail over
12 hairs yellow bucktail over
12 hairs white bucktail.

All tied in at the head with gold or silver mylar wrapped down the hookshank for a body.

Usually I go with less hairs to get my fly sparser so it will sink a bit faster without adding any weight to it.

It is a fly that is a good producer and can be thrown with any weight rod.