I was able to do Sha of doubt at 85 (1 prot pally, 4 ele sham, 390 geared) by using a spread macro at the start and after each add phase (grouped back and used ancestral guidance for adds with CL spam). At 87 it's a joke as you just pop Ascendance and hero and elemental mastery at the start and nuke him down to bugger all.

I did have to do a fair bit of self healing though, healing stream every cd and adds hurt the shams if they dont die quick enough