An ulf is a quick transport beast, best in cool climates. Sometimes tamed by large amounts of drugs, others are tamed more naturally. These are ultimately far more reliable, but far rarer, as ulfs are rather difficult to tame. The person with the ulf is the illegitimate son of the King of Elves, Ellious Armitage, who is more commonly known as The Bastard Prince. (I've redesigned him since.) He lived several hundred years before Deana, Adahari, Mia, and them, but was instrumental in causing the war which drove most of the Orcs into the desert. Perhaps I'll color the background later . . .