http://pokemondb.net/pokebase/2790/what-is-a-good-moveset-for-smeargle - Moveset Q
http://pokemondb.net/pokedex/smeargle - Smeargle Page
Like an idiot I went to the smeargle page to get a list of moves it could learn, and of course all I saw was Sketch. But while I was on that page, I noticed that the moveset question was not in the "Answers to Smargle questions" section.