Five Golden Tablets were created by Yen Yu , fearing someone would one day discover the warrior devil army and use them evil, just as Emperor Qin had intended. They were created using the last of the djinn spit with the power of allowing a single good man to command unquestioning obedience from all men, as well as the army of warrior devils. Before he died, Yen Yu left the golden tablets to the succeeding emperors of china. One of these eventually reached Kublai Khan, who in turn, gave it to Marco Polo.
The Golden Tablet of command gives the user great power over other people, including humans. When Philippa told a stalker to "get lost" he shut himself in a broom closet and when telling a check-in attendant to "have a nice day", she took off her shoes and started reading a magazine.