Earthspeaker's Shadow
Increase your Spell Haste by 6. Increase your Critical Damage against Stunned enemies by 25%
Where to get
Show on the tree It opens the Xwin Dreadhorn tree.
It opens when any one of the nodes it needs has a point.
Numbers
How Spell Haste works
A cooldown becomes cooldown x 100 / (100 + Spell Haste). 100 Spell Haste halves every cooldown. It also shortens charge recharge. Your race's dash and defensive spells keep their full cooldown.
Spell Haste Increase
Critical Damage vs. Stunned
Shadow Quake