Built from the Factory, the Viking is a mélange of an air-superiority fighter and an assault walker, designed to be useful against ground, as well as aerial targets. During the Brood War, Goliaths were easily outran and Valkyries and Wraiths offered too little to counterbalance enemy forces. Thus the Viking was created to fill up that flaw. Its transformation ability offers new vistas of possibilities which give rise to new tactics.