With his runic tattoos changed to the Lantern Element's energy, it only took Ryuk a little less than an hour to be able to use all of the elements in the book, something that alarmed him quite a bit.
Sitting with his back against the sofa, a spectral lantern could be seen in his hands.
His left gripped it by the handle, and where the candle ought to be burned, a blazing white light.
Reaching his right hand out to the candle's side, he watched as motes of white light shifted out of the lantern's chimney.
The second they were out, they first conjured into a round ball before quickly changing, soon forming a massive one-meter-tall sword of pure white flames within Ryuk's grasp.
"The Lightblade," he muttered beneath his breath, swinging the sword around him a couple of times.
Flames trailed through the air, a truly beautiful sight, but the space around him didn't cut like a sharp blade would have.