I go full Crit/ Det as a blk mage, with a mix of Pve/Pvp gear. Spell speed and Skill speed are as useless as Acc in Pvp; who cares is you shave 1/3 of a sec off your GCD or cast time. Since Im constantly on the move, and only stop to cast if I know I can burst damage a target, id rather stick with my 1k+ Scathes. Aim to gear in a way that Crit is the highest stat on gear, followed by Det