Oblivions are Silvers who can cause molecular disruption by contact.
"Oblivions are elementals, with the ability to break molecular bond and creating a grand explosion. They must be touching the object or opponent, and more dense objects or opponents are naturally more difficult to utilize. Skilled oblivions can pulverize solid concrete or stronger metals, making them vital to construction efforts in Silver cities. They are also deadly warriors, using their abilities for more fragile flesh, bone, and organs." - On Silverblooded Abilities by Victoria Aveyard