Transmutation was a huge multi-step process. What Kazi did and explained was only a small drop of his great feat.
To change from fire to water was absurd in so many ways. One aspect was the concept and effect. For example, applying the concept of burning to cold water. With a magic circle, this was possible to do for an amateur. But to do it with no magic circle? To switch and add concepts and transform them the way he did?
Absurd.
"From lightning…" He closed one eye, smiling. He turned up the intensity, the heat! The particles changed! He could feel it!
Intuitively recalling what the journal of a certain sorcerer in the past said, he replicated a multi-step process that ordinarily took years of practice and study and, most of all, a wand or staff to supplement further.
Kazi did it with his bare hands. With nothing to support him. Pure comprehension of what he was doing.
"...to Earth! And from Earth…to steel!"