Influence

Sovereignty is a notable passive skill that grants increased effect of auras you cast.

Location

Influence is located in the top right area of the tree, just above the Shadow starting area. It is in a cluster of 3 nodes with a Reduced Mana Reservation node and an Aura Effect node.

Class	Distance from start
Shadow	10
Witch	12
Scion	14
Ranger	18
Templar	21
Duelist	25
Marauder	27