Increases the armor bonus of your Devotion Aura by X% and increases the amount healed on any target affected by any of your Auras by Y%.
Improved Devotion Aura is a talent in the Protection tree, you will need to spend 18 points in Protection to max it. Increases the armor bonus of your Devotion Aura and increases the amount healed on any target affected by any of your Auras.
At max rank of Devotion Aura and max rank of Imp. Devotion Aura, it will add a total of 1205.4 armor to everyone in range. This is a significant boost for clothies over no aura, and even a significant (344.4 armor) improvement over unenhanced Devotion Aura. Raiding tanks typically have 22-25k armor, so the extra 344.4 is more than a 1% increase for them.
Patch 3.1.0 (14-Apr-2009): The additional healing granted by this talent now becomes active when any Aura is used, not just Devotion Aura.