Once the formation took shape, Huo Hai finally understood why the Vast Earth Empire had used this combined formation. Different Spirit Formations were extremely difficult to combine, because there were always certain conflicts between them.
Moreover, different Spirit Formations had their own methods of use and modes of operation. Combining two Spirit Formations was therefore quite troublesome. Beyond combined Spirit Formations were even more powerful Fusion Spirit Formations. Those required completely different Spirit Formations to be thoroughly fused into one, making them even harder to achieve.
Even for the Vast Earth Empire, completing such a Combined Spirit Formation was far from easy. As for Fusion Spirit Formations, Huo Hai had never seen one. Even he himself merely modified different Spirit Formations and created new ones from them.
Creating a new Spirit Formation sounded more difficult, but that was not the case at all. Creating a new Spirit Formation was like painting on a blank sheet of paper. Creating one of too high a grade was difficult, but ordinary Spirit Formations were not.
Combining two Spirit Formations, however, was like joining two different paintings together so that they looked like one complete picture. Fusion was simply melding the two paintings into one entirely, and the difficulty was terrifying. Yet once it succeeded, the Spirit Formation could possess the powers of both originals. The higher the degree of fusion, the greater its might.
The Vast Earth Empire was using the Geomagnetic Spirit Formation now precisely because this formation was very simple and basically would not conflict with other Spirit Formations. Otherwise, combining such formations would have been exceedingly difficult.
Huo Hai had already seen through it. In essence, this formation should have had its Formation Core outside. The Vast Earth Empire must have had people lying in ambush outside, and they were