Maguindanao epics are chanted and antedate Islam, the elements of which were later incorporated. The epic Raja Indarapatra deals with various characters, many of whom are imbued with supernatural powers. One portion of the epic tells the story of how two brothers, Raja Indarapatra and Raja Sulayman, save Mindanao from terrible creatures (Gagelonia 1967:288). Another portion deals with the birth of Raja Indarapatra, who is said to come from the union of Sultan Nabi and his cousin. The plot revolves around a trick the cousin, who is well versed in black magic, plays on the Sultan.