Restless spirit

The is an entity believed to be the soul of fallen Piglin warriors who died in the Withered forest battlefield. Invisible, and only visible with the help of particles, it is really weak, but pretty agile, making it difficult to kill. Although, it can be easily exorcized by holding a Chainmail armor piece. Echoing oinks further confirm that it is the souls of fallen Piglin warriors.

Location
The can spawn in anywhere around the Withered forest.