Magic and Science together in their technology
The technology on Marvitrey is far more advanced than any civilization, have technology that can do almost everything, Time and Space travel ships that are dimensionally transcendental and can take on a disguise of an object that is normally around wherever and Whenever they land. Devices that act as extensions of their Tardises analyzing and psychic capabilities that can do any function that the Time Lord owner of said device wants it to do.