Bai Wuya was frowning as well. The Eastern Sage Immortal Emperor actually used this method, he clearly came prepared. Each of these immortal kings had a different cultivation base, but the positions the four groups were standing at, was clearly in the form of a battle formation.
"They are able to use combination-formations as well." Bai Wuya spoke in a low voice. Undoubtedly, such a formation will be able to boost their attacking prowess. With 36 immortal kings grouped together, each in one of the four directions, the attacking might would be inconceivably immense. If individual immortal kings were to directly defend against it, for those of the same level, they would only find themselves being slaughtered. Unless of course, their cultivation base was a whole level higher in comparison.