A veteran of multiple wars, Niklas Nosberg has learned everything he knows through experience. His youth was spent spelunking around the world and finding various lost treasures, and thus, he dislikes the idea of studying something with your nose deep in books. Some find his hands-on approach to lectures troublesome, but Niklas is one of the teachers who you don't want to give lip; he will send your ass to detention the moment you try to get cute with him.
His lectures are, as mentioned, rather involving, and if you can get into it, highly informative.