Minho

I just got a warforged unstable arcanocrystal( i think it was ilvl 865) and heroic entwined elemental foci(890). I simmed both along with heroic wf draught of souls and the unstable arcanocrystal seems to do more dps. but the stats the foci gives are pretty good when they proc. idk, im just confused on which to use. what do you guys think?