Every kind of Ancient Divine Beast had its own innate secret art. The Heaven-Devouring Wolf, for example, could swallow the heavens and devour the earth, while the Golden-Winged Heavenly Peng excelled at speed. The Void Beast's innate secret art was traversing the void, and when mastered to its limit, it allowed the beast to teleport. The higher an Ancient Divine Beast's cultivation, the farther it could teleport, and the more easily it could use the art.
Although the Void Beast couldn't teleport nearly as far as Ling Tian or Feng Lingzi, its ability was still powerful for cultivators. It could be very useful for both pursuing enemies and escaping.
If they were dealing with Void Beasts alone, Fairy Sword, Tan Tai Chang Feng, and the others naturally wouldn't be worried. But it would be a different matter if Chi Xue's forces and the Outer Realm Demon Race cultivators captured these Void Beasts and then fused with them. After cultivating the Beast Taming Cultivator secret art and fusing with an Ancient Divine Beast, one could inherit its innate secret art. In other words, after fusing with Void Beasts, members of those two factions could also traverse the void at will and even master teleportation.
Ling Tian, Chi Xue, and the others had analyzed this before. To counter the Myriad Sword Demon Extermination Grand Formation under Ling Tian's control, they would need a powerhouse skilled in teleportation to teleport to Ling Tian, tie him down, and even drive him out of the formation. Then, with their formidable strength, they could seriously injure or even kill Fairy Sword and the others. In other words, after fusing with Void Beasts, those two factions would pose a great threat to Ling Tian and his companions.
That was precisely why Fairy Sword and Tan Tai Chang