Back in Lisan Universe, Rean learned about two things. First, the Celestial Laws method of communication. The Semi-Celestials were able to sacrifice their comprehension of laws to control the Celestial Laws, which allowed them to communicate with any other Semi-Celestial in the Universe. That was instant communication, so perhaps this Great Void Shifter used a similar method.
The second thing that came to Rean's mind was the system's Circuitry Formation. It had the power to instantly teleport Rean and Roan to a random position up to a thousand kilometers. It didn't have a need to connect to anything, but it was also due to this fact that it was completely random. Besides, the energy necessary increased many times than a normal Teleport Formation needed to teleport the same distance. If the Shifter is using a similar method but can pinpoint a location, then the energy to make that transfer was probably ridiculously high.
