The orb. The all knowing orb. Similar to today's smartphone in the sense it gives the user access to various knowledge in the palm of their hand. And warlocks having studied the traveler are all about knowledge I would assume. So the warlock begins to charge up a mini nebula in his hand similar to the warlock in"The Law of the Jungle". As the warlock sustains the spell his magic force is steadily drained until the spell fades. Similar to how the charge in a charged plasma pistol decreases the longer you hold it. Along with the ability to fling hot space matter into their enemy's faces, the orb acts as a rear view mirror effectively granting the warlock "eyes in the back of his head". The orb creates a faint image of whatever is behind him up to a certain distance. "He'll never see it coming" were the last words the Fallen Commander uttered before the adept warlock spun around and served him steaming hot space matter, medium rare.