Making his new weapon was a long process.
The first step involved creating alloys from the cold- and lightning-attuned metals he'd gathered. Though this method wasn't as good as naturally occurring thundersnow materials, he simply didn't have access to those—and likely wouldn't while he remained on Earth.
He'd heard some scattered reports of naturally occurring second-rank materials, but that was all. Even these third-rank materials were simply already presented in this dimension Audumbla had left him, but if he'd ever get the chance to work with fourth-rank materials, they'd have to have been left behind by the previous inhabitants of this world.
