Quote Originally Posted by Deceptus View Post
Energy drain does damage and increases the gauge.
As I stated in the clause you quoted, SCH's fey gauge is a little less passive than WHM. It still requires very little interaction from the SCH to fill it, and in most situations it caps out and the SCH has no optimal means to prevent it from doing so. It also becomes entirely useless while Seraph is out. Point being, it's not a very good or engaging job mechanic.