Kulta the Skull Grinder

Kulta the Skull Grinder is the new antagonist in the BIONICLE 2015 storyline and one of the villains in the BIONICLE series. He was also the leader of the undead monsters, Skull Creatures. He makes his appearance in the rest of the story, following the defeat of the Lord of the Skull Spiders in the hands of the Toa Masters.