Absolutely magic. Like all the rest of Fjord's bullshit.

"I can only assume so, yeah. I found a second one a while ago, went into me the same way." He points his hand away from Soldat and there's a spray of water from his palm that hits the ground with a loud splash, and his barnacle-covered falchion appears, dripping, in his hand. Soldat's probably somewhat familiar with it by now - with its yellow crystal eye set in the hilt. He twists it in his hand, showing off the mundane pommel. "One of them went here, before I put it in its proper location." And then he taps the eye in the hilt. "And this one was the one I first absorbed. So it's either this one, or it's still inside me." And he's honestly not sure which of those concepts he hates more.