Dusknoir is really underrated. Just because you use it doesn't mean you're a noob. Dusknoir may be outclassed as a wall in OU and may suck in RU, but when you use it as a SubPuncher, it suddenly becomes very good. I posted a team that got 1935 ACRE on Pokemon Showdown with 19-9-1. Substitute/Focus Punch/Shadow Sneak/Will-o-Wisp is the way to go with Dusk.