Origin
Very little is known about Swag. He is probably from the future, and acts as a time- and dimension-travelling salesman.
Creation
Swag was created by Ann Nocenti, Fabrizio Fiorentino, and Szymon Kudranski. He made his first appearance in Klarion #4.
Major Story Arcs
Klarion
Swag appears in Klarion’s pocket to offer him technology that will help him defeat the technology of Coal. He talks him into accepting a highly advanced version of the buddybot. When Piper and Noah arrive he is approached by Piper, and reveals he has put a wedge between Zell and Klarion, so that Klarion will eventually turn to their side. After Coal is defeated, he celebrates with Beelzebub.
Powers and Abilities
Swag may have some form of inherent dimensional or time travel skills, but this is unclear. He is very persuasive and a skilled salesman.