Shadowßeast @ Sargeras - Game Guide - World of Warcraft
Assuming 1 point in Twisted Faith(50% spirit from gear to hit) :
Get Mindthrust (your choice of 9 stam or 15 sp)
a couple agms
serpent gloves (your choice between 20 shadow sp or 16 solid sp).
If you choose 100 health over 4 stats on chest, switch to wind rider/suppressor wand. Otherwise use Firebelcher, Durak's Wand or Cookie's Stirring Rod.