This has probably been asked before, but after using a Dusknoir with Torment for a time, I must ask the question: why is Torment practically never used at all? It works wonders on defensively-minded Pokemon, especially with the propensity of Choice-users running around all over the metagame. Dusknoir is a great example. One of his best counters is Heracross (who carries either Choice Band or Choice Scarf 99% of the time). Heracross thinks he's coming in on a predicted Will-o-wisp, but Dusknoir has a trick up his sleeve: Torment. Not only did Heracross fail to get the Guts boost he desired, but he also has to switch out after using one move. So Dusknoir can just hang around, use Pain Split or something, as Pursuit does crappy damage and Heracross is forced out. And Dusknoir isn't exactly begging for moveslots (you can easily fit Torment in with Shadow Sneak//Will-o-Wisp//Pain Split//Torment). So with all the clear advantages, where's Torment?