Trisula

Trisula is a Shingu formerly wielded by Natala up until the release of his soul from Yatsufusa's bind. It is unknown whether the weapon was retrieved or left behind.

Abilities
Trisula appears to take the form of either Bisento or Naginata. Its most prominent feature is to extend its staff which allows for surprise attacks and long range combat.

Trivia

 * Trisula is a type of South Asian trident commonly used as a Hindu-Buddhist religious symbol. The word means "three spear" in Sanskrit and Pali.