Darkness Sphere

You manipulate shadows and darkness.

Granted Powers: You gain Umbral Channel as a bonus feat, even if you do not meet the prerequisites. 

In addition, you add Bluff (Cha), Knowledge (dungeoneering) (Int), and Stealth (Dex) to your list of skills.

Sphere Powers: You can select your sphere powers from the powers and revelations granted by the 

following sources.