In this situation, relying on a grand military formation was the safest course.
Individual cultivation and strength remained crucial to life-and-death slaughter, but they had indeed been weakened considerably. This was the first time Lu Xiaotian had felt this way since reaching the level of an Immortal Lord.
Compared with other methods, the Law Spirit Weapon Legion was better suited to the circumstances before them. However, once the Law Spirit Weapon Legion emerged, the slaughter it caused would inevitably become uncontrollable.
This was something both Lu Xiaotian and the Dragon Seal Dharma King greatly dreaded. There was nothing improper about using the Law Spirit Weapon Legion among those of the same rank.
If one wanted to run rampant across the battlefield with such methods, then while solving one's troubles, one would also be inviting calamity upon oneself. Lu Xiaotian had experienced it once, so naturally he did not want to experience it a second time.
Grand military formations were still highly effective. It was only after reaching the Immortal Lord level, as one's strength rose sharply, that the restraints became increasingly weaker. But that did not mean the formations had lost their effect. An ordinary Primordial Spirit body would be affected even more when facing one.
Within the several realms, only a tiny number could ultimately reach the Immortal Lord level. If not for the opening of the Immortal-Demon Battlefield, and if this were not an extremely important place like the Ancient Buddha Secret Realm, it would normally be difficult to encounter such a vast scene.
That overwhelming killing intent caused the fragments of the Ten Thousand Weapons Continent within Lu Xiaotian's body to resonate to some degree.
It seemed that the boundless killing intent within the Ten Thousand Weapons Continent had received some inexplicable summons, and amid this resonance,