The spirit who looks after the welfare of the bagani, or warriors. He is described as a gigantic man who always shows his teeth and is otherwise of ferocious aspect. A warrior who sees him is at once filled with the desire to kill. Occasional offerings of pigs and rice are made to him in order to prevent him from harming the settlement, but sometimes these gifts fail and many people are slain by those who serve him. Cp. Busao, busau.
Busau is known as Tuglinsau, Tagbusau, or Mandangum among the Mandaya at the north end of Davao Gulf.
- Cole, Fay-Cooper. (1913). The Wild Tribes of Davao District, Mindanao. Chicago: Field Museum of Natural History, p.177.