Shadow Priest PvE Stat Priority - 7.1.5
The below Stat Priority recommendation is based on a mix of SimulationCraft, spreadsheets, in-game testing and through collaboration with other players. Understanding the priority will help you make decisions on which gear to use and how to optimize it, helping improve your overall DPS performance.
Intellect > Crit > Haste > Mastery > Versatility
Intellect increases the damage and healing done by your spells.
Critical Strike increase the chance for your spells and attacks to critically hit for additional damage and healing.
Haste increases attack and spell casting speed, adds additional damage and healing to DoTsA spell or ability that does damage over time. and HoTsA spell or ability that heals over time., and reduces the GCDA universal cooldown activated by most abilities..
Versatility increases your damage, healing, and absorption done and decreases damage received.
Intellect [9.06] > Crit [7.56] > Haste [6.06] > Mastery [4.56] > Versatility [3.06]
( Pawn: v1: "PvE-Priest-Shadow-Noxxic": Class=Priest, Spec=3, CritRating=7.56, MasteryRating=4.56, HasteRating=6.06, Intellect=9.06, Versatility=3.06)