This is Draku. He is the leader of the Makuta Karakhi Zhex School, a rival school to Mata Taekworu Zhex. Translated “The Venomous Makuta Way”, it has a style of fighting similar to, but more ferocious and sinister than Mata-Taekworu Zhex.
He made most of his armies and taught them everything he knew. In his past he was a prototype Rahkshi until he had too much exposure to a combination of protodermic fumes and a an unknown substance that triggers mutations, which changed his body gradually. The power was too much for the Kraata to handle. That protodermic reaction caused him to have a mind of his own and enter a techno-organic state which kept on changing gradually, although we was still loyal to Makuta Teridax and the Dark Hunters.
He is armed with sharp claws, sharp fangs, horns, wings, a sphere launcher, tail, and bladed spear.