Chapter 103 - Viljar's past [2/2

While entering teacher mode, Elora began to explain what she knew of kinetic sigils. 

"Kinetic sigils are a relatively rare type, which is why we didn't encounter them in the last seven years and why you don't recognize the term. 

The main difference with regular sigils is the energy they use. Where regular sigils simply use aetherium, either from the surroundings or from a person, a kinetic sigil will gather kinetic energy from movement over a certain area and then use that energy to unleash its effect.

Such a sigil takes much longer to activate, but it is very hard to detect up until the moment it finishes gathering energy. On Söl, it's mainly used for its stealthy nature, but using it in a place where there is no aetherium is certainly an ingenuous way to exploit a kinetic sigil's unique nature."