Currently, the Technique Spirit for Sky Gate has been explored to have three uses:
Using it on walls with a thickness not exceeding 10 cm (One-winged)/50 cm (Two-winged)/3 meters (Three-winged) allows you to open a temporary passage, maintaining the passage requires constant consumption of magic power.
Using it in the real world for creating a portal; however, 99% of the time, the portal leads to Void Turbulence capable of destroying anything, and it's extremely unstable, possibly collapsing in the next second.
Using it in the Void Realm creates a Sky Gate, which currently serves no purpose.
