28.28.5
Ok, I know, shadow priests are bla,bla,bla and spec is an old issue
But here we have this spec that is what everyone wants from a priest: good damage and good healing.
The way it has to be built is like this: 5/5 Spirit tap then all holy tree only with 4/5 Spiritual Guidance and lastly get as fast as you can Divine Spirit.
Simple efective.
Just try and you will love it
p.s. kinda bored:P