Ultra Rakshi are an Experimental super soldier designed by the Makuta for special operations. Built to out last the regular Rakshi in prolonged combat they can fight for hours without pause. There armor is incredibly tough and can withstand extreme heat and radiation. The Kraata within them are fully sentient, But will follow the orders of their dark fathers to the letter. They always travel in pairs unless their partner is killed or they are separated from them.
Kurak is the Ultra Rakshi of lightning. Able to create chain lightning out of thin air he can hit two of his opponents at once. With almost absolute control of this energy he is a force to be reckoned with. His partner, A blue Rakshi of plasma Fell to a team of Toa when they were ambushed. Kurak destroyed the team and completed his mission returning to the Nearest Makuta as per orders. This turned out to be the rouge Makuta: Vlidrakh. Kurak is now the newest minion of Vlidrakh and will follow his orders him until he dies.