Guurahk was the Rahkshi of Disintegration, making him the dark spawn prince of dust, ruin, and the enemy of igmatination, and the dark spawn warrior of straigey and cleverness. possably, he is used to counteract against brillient straitges from foes to benifict his allies. It helped in the destruction of Ta-Koro. He followed Takua and Jaller to Ko-Wahi, where Kopaka froze it. Guurahk somehow managed to escape the layer of ice and get to Kini-Nui, where he was stopped by the Toa Nuva. Guurahk was then dissasembled and parts of him were used to create the Ussanui. Guurahk was also found fighting on Bara Magna. After the demise of Makuta, he died with the other Rahkshi forces.
Guurahk was a skilled planner and intelligent. He would spend hours observing an enemy's weaknesses and powers before striking. Its kraata was sand blue metallic/medium blue.
Guurahk was chosen by Teridax because his power was the enemy of creation, the prospect of Po-Matoran. currently, Guurahk incredably become one of the vanguards of a new master, Emperor Fang, his evil presents similates the Makuta that he and the other rahkshis obey him without question (Rahkshis don't talk anyway) and now leads an army of non-dark spawnic Vaki.