Item from The Dresden Files by Jim Butcher
One of the three Swords of the Cross — formerly a katana wielded by Shiro, now transformed into a blade of pure light wielded by Waldo Butters, who proved that faith doesn't require religion.
Fidelacchius is the Sword of Faith, and its history illustrates what the Swords really are better than any theological treatise. For centuries it was a katana — elegant, curved, Japanese in style — wielded by Shiro Yoshimo, a Baptist minister and former musician who carried it with quiet certainty and died protecting Harry Dresden from Nicodemus Archleone. After Shiro's death, the Sword passed through several temporary custodians before finding its way to Waldo Butters. Butters is a medical examiner. A small, nerdy Jewish man who plays polka and collects Star Wars memorabilia. He's not a warrior. He's not religious in any traditional sense. He picked up the Sword because someone needed to, and when he did, Fidelacchius transformed — the blade dissolved and reformed as a beam of pure white light emanating from the hilt. A lightsaber. Because Butters had faith — not in God, not in any specific doctrine, but in the idea that good people should stand up when bad things happen. And the Sword accepted that. The transformation proved something Harry had suspected: the Swords don't care about religion. They care about faith — genuine belief in something larger than yourself, genuine willingness to fight for others. Butters wields Fidelacchius with more enthusiasm than technique, but the Sword compensates. It cuts through anything, it can deflect magic, and it lights up the darkness in ways that are both literal and metaphorical. Butters calls it 'lightsaber.' Harry tries not to laugh.
Formerly a katana — Shiro's blade. When Butters took up the Sword, it transformed: the blade is now a beam of light extending from the hilt, like a lightsaber. The Nail is in the handle. It hums when drawn.
Also known as: Fidelacchius, the Sword of Faith, Butters' lightsaber, Shiro's sword