I run the below listed ra's on my Sham, works well for me. Try some stuff out and see what ya like. I strongly recommend MoC I, Ichor I, and Purge III as standard ra's.
RR 6L2 LW Tireless Mastery of Arcane IV Mastery of Focus II Aug Dex III Mastery of the Art II MoC I Ichor I VR II Purge III