"It's a slice out of real time, not even sunglasses are allowed," James said.
"I've done all sorts of martial arts, as well as boxing and cage fighting, and I've trained in Thailand, and medieval combat is the pinnacle," he said.
When he's not locked in medieval combat, James is a designer and photographer, working in digital design and animation in Auckland.
"My passion for martial arts and art go well together," he said. "My chance to represent New Zealand in Europe came when I was training with a German long-sword instructor in Dunedin, but this isn't rugby so I've had to fundraise. I've been lucky to have wonderful support from Evan Nattrass of Woodville.
"Evan is one of my oldest mates from the days of the Ravens [the Red Ravens medieval re-enactment group] and he's given me sponsorship."
Mr Nattrass told the Dannevirke News the world of full combat medieval battles is very much a fringe sport in New Zealand, but it's growing.
This is the first time James has competed in a world event.