Maybe it could tie into like a robotics skill set? Not sure, someone who can make robot sentries. Give some life to cities.
Tech fragments can be used and combined into machine parts?
Could take lucents to run, or gems.
I always wanted robots or moving tech. Maybe this could tie together?
Sapphires can make the robot shoot frost beams.
Rubies fire beams.
Blink can increase atk or move speed of robots
Rift maybe causes a pull in ability and they become melee range attacks?
Interesting ideas, would be fun I think.
Tech fragments could be used for repairs periodically. When the machines break down