Serrator

Serrator was referred to in legends as the Nighlok King. He was the one that cursed Dayu and Deker to live on as Nighloks. He has since recruited both Dayu and Deker, while also offering to fix their broken items.

Serrator is unknown to Master Xandred and Octoroo. He sends heralds to 'help' Xandred try and defeat the Samurai Rangers, such as Switchbeast. Soon he makes himself known to Xandred, not as a king, but as a Nighlok who's been trapped for so long, and had been only recently freed and powered up by surges in the Sanzu River. He offers his services to Xandred, who he calls 'master' and vows unflinching loyalty to him. In addition, he brings with him new Moogers eagerly awaiting his orders. He makes himself known to the Rangers where none of their attacks were able to harm him. Serrator even cuts a piece of paper into a shape and transforms it into Papyrox. When Antonio Garcia arrives and manages to harm Serrator, he leaves stating that the Rangers "passed the test" for now.