Once Yalkon was a tahtorahk doing what tahtorahk do best, returning Mata Nui to the rubble it had once been.
About this creation
Then, Makuta made an expirement and changed him into yalkon. Yalkon rebelled and ran away. He fled to Voya Nui. Botar Found him and took him to OoMn. He took care of him and sent him to join OoMn. Yalkon was a feirce warrior because he remembered what Makuta had done to him.