Professor Harris is the Leader of Steel. He is tougher than Darby and has different properties than him. With steel magic, Professor Harris used that to help build the powerful magical fast plasma train. He build all the rails. It took him 1 week, 24/7.
How he got his orb:
He was playing his 3DS which was the only magical 3DS. The Leader of Elemente hid the steel orb inside the 3DS. Harris's sister had broke it and the orb smashed into him, injuring him. The orb was absorbed by Harris.