The Spirit Spear Chastiefol (霊槍シャスティフォル Reisō Shasutiforu) is King’s sacred treasure, and a holy weapon crafted from the Sacred Tree found only in the Fairy Realm.

This Model uses Form One: Chastiefo (第一形態: 霊槍シャスティフォル Daiichi Keitai: Shasutiforu; literally meaning “Spirit Spear”): King frequently utilizes this form, which is a long, broad spear, in conjunction with his levitation ability to perform basic ranged attacks. It acts as a homing-weapon, continuously following a dodging enemy and cornering them.

and his other most used form Form Five: Increase (第五形態: 増殖インクリース Daigo Keitai: Inkurīsu): An army of small kunai-like spears are multiplied from one, their individual trajectories are controlled by King at will through simple motioning and gesturing of his hands.

Based on the Anime: 7 Deadly Sins