"Only a Japanese blade can end something this perverted."
But actually ...
First of all, you don't need to fold good steel. Japanese swordsmiths used a metal known as tamahagane. It sounds fancy as hell, but so does anything you say in Japanese. Westerners knew tamahagane as "pig iron," which is considerably less romantic. They refused to use it in the west for weapons, not because they were stubborn morons but because it's loaded down with carbon and too much carbon will turn your sword into a brittle shower of metal shards during its first use. See, the process of folding a sword started as a way to iron out that extra carbon in a shitty alloy, turning pig metal into something more suitable for stylized murder.
Because murdering people with a machete is just crass.
Now think about folding a piece of paper -- doing it a few times is easy, but try folding it over 15 or 20 times. Likewise, you can fold steel maybe 20 times, if you were some kind of fold-crazed junkie. Real Japanese swordsmiths folded their blades about eight times. Folding much more than that would suck all the carbon out of the steel, leaving you with a soft, Play-Dohy katana that would be better suited for enemies like warm butter than anything you might encounter on a battlefield.
But more importantly, even the very best katanas are pretty much useless in the hands of anyone who hasn't gone through exhaustive training. There's a whole book's worth of rules for wielding one properly. In fact, just swinging one of these swords as hard as you can will undoubtedly end in your sweet Hanzo shattering to pieces, like the fellow in the video who was fighting against one of the most formidable enemies known to man: moderate amounts of wood.
The secret to using a katana is, counter-intuitively, to swing the sword like a fishing rod, keeping your wrist so flaccid you want to offer red-faced apologies about how this usually never happens. So if you're dead set on a katana for the apocsturbation marathon you've got planned for the End of Days, you'd better start putting in time at the lake. For the rest of you, our bladesmith recommends more idiot-proof weapons.
Buy it here at Fearghal Blades