How can you get Uria Lord of Searing Flames in Yu-Gi-Oh WC 2008

Beat all of the duelists in the Neo Space portion of the World of Chaos, five times to unlock the pack "Chaos of Nothing". It contains Uria. The duelists to beat are Neos Alius, Plasma, Malicious Edge. To unlock the World of Chaos, if you haven't already, clear the challenge at the final gate in World of Order.