Neiz is a skilled warrior from the DBZ series. He was able to outfight Krillin and Gohan. Even more impressive is the fact that he went up against powerful fighters like Goku and Piccolo even if he could not do much against those two. Oya has fire and ice abilities which are good, but they don’t improve her physical stats. This means that she gets speed blitzed by Neiz the instant that the match ends. She simply won’t be able to keep up with his moves. Neiz wins.