The Alliance of the Clans
Clearly, they greatly admired their teacher's methods. In a short period, the sect grounds of Lanyan Royal School in the Snow Clan's ruins had already been intricately arranged, all thanks to the relentless efforts of the masters from the Immortal and Demon Realms.
Even though the formations around the sect seemed excessive to them, those formations weren't meant to deal with them, so it wasn't their concern. The formation masters appeared almost obsessed, each array they set up more outrageous than the last.
Not long ago, a spy from another sect mistakenly entered one of the formations. It was merely the simplest illusion array, yet the cultivator at the Imperial Realm level emerged from the illusion with his heart shattered, losing his mind, bleeding from all seven orifices, and ultimately dying. The array wasn't just an illusion but also a poison array, containing various toxins that induced hallucinations. The poison could even penetrate the protective qi of cultivators.