Sculpin "The ONE" by Solitude - Available in Olive & Natural #4
This might be the only "one" you need! This is a great fly and we've caught lots of heavy trout on this. It doesn't sink super fast which is a good thing much of the time. It swims like a real fish and you can replace the hook on this fly down the road (if necessary, the hook is very sharp and stout) but always remember that most articulated flies like this are tied specifically so that is an option. Sharp hooks get fish.