Stat Priority (5.2)
Stats are the core of your character and how you choose to balance those stats will greatly impact the effectiveness of your Discipline Priest. Use this guide to select the stats that are the most important for your Priest and learn how to prioritize those stats to optimize your performance.
Intellect > PvP Power > PvP Resilience > Spirit > Mastery = Crit > Haste
Intellect Increases damage and healing dealt by all spells and slightly improves critical strike chance.
PvP Power Increases all healing done to players and their pets or minions.
PvP Resilience Provides damage reduction against all damage done by players and their pets or minions. You start with a base PvP Resilience of 40%. PvP Resilience is more effective than raw Stamina for mitigating damage received in PvP environments. The choice of how much PvP Resilience to stack entirely depends on how much damage you want to mitigate versus how much healing you would like to do to your targets. If you find yourself dying too frequently, try adding more PvP Resilience.
Spirit Increases the rate of your Mana regeneration. Spirit is the best stat for Mana efficiency. Only stack enough Spirit to have just enough Mana for your typical PvP encounter.
Mastery Mastery Shield Discipline increases the amount of damage absorbed by your shields including Power Word Shield and Divine Aegis.
Crit Increases the chance for spells and heals to critically hit. Increases Divine Aegis procs.
Haste Reduces the cast time of spells, increases the ticking rate of Heal over Time (HoT) spells, and lowers the GCD.