The catastrophic results of Luthor’s great experiment severed him from the Winds of Magic. As such, and unlike other Vampires, he has no magical abilities beyond the power to control his Undead hordes. However, Luthor’s unusual condition means that he emanates a peculiar anti-magic field.
Luthor Harkon channel dispel dice like a Level 4 Wizard. In addition, he does so on a 5+ rather than a 6.