Formation, and in fact, he had integrated another set of Hei Yan Mang Ling Formation into it over the years. The two formations combined increased its power exponentially. Otherwise, capturing a lat...nt turtles slumbering. In the Nethermirror Demon Sea, they are known as the Nine Profound Turtles of Nirvana. They are naturally sleepy creatures. For these Nine Profound Turtles of Nirvana, sleep is...