Recently after 2.4 i see allot Rogues respecing to Mutilate. Most of them learn that Renataki's Charm of Trickery - WoWWiki - Your guide to the World of Warcraft
is the best Mutilate pvp trinket right now. It is true. BUT Do not farm for it now!Bosses you need shifts every 2 weeks... so its gonna take you minimum 2MONTHS to get it.Not counting costly mats. In 2 months either of 3 things will most likely happen:
1. WOTLK comes out(this trinket will be worthless on 80)
2.It gets nerfed becuse of QQ
3.It will be obtainable by honor/arena instead
SO I REPEAT. DO NOT FARM THIS! ITS NOT WORTH IT ANYMORE