As a Balance Druid you will mainly focus on the item level as primary stat is really good in the start of the expansion. Also, remember that Crit is not really something you want too much of if you are using the Balance of All Things legendary.
As a Balance Druid you will mainly focus on the item level as all stats are really good for you.
Mastery: Increases the damage of your spells. The Mastery coefficient has had a recent buff and now is a fairly strong stat overall.
Haste: Makes DoTs ticks faster and generate more Astral Power.
Versatility: Great overall stat for increasing damage done and reducing damage taken; making it a nice defensive stat for progress.
Crit: Grants a chance to deal double damage on all spells. It loses a lot of priority value with crit legendary (Balance of All Things).
The best way to calculate stat priorities for your character is to "sim" your characterFind out how to sim
Horde: Troll for horde because of the Berserking racial. Highmountain Tauren is also pretty good due to Bull Rush and the 1% versatility passive (recommended for Night Fae players).
Ring: Tenet of Mastery
Chest: Eternal Stats
Wrist: Eternal Intellect
Oil: Shadowcore oil
Mastery Gem: Masterful Jewel Cluster
Intellect Food: Feast of Gluttonous Hedonism
Flask: Spectral Flask of Power
Potion: Potion of Spectral Intellect
Health Potion: Spiritual Healing Potion
Armor Kit: Heavy Desolate Armor Kit