Webthere are ten major sword colors that have been explored in demon slayer, all of which have a pretty clear correlation to each pillar of the demon slayer corps: Webthe brutal hashira training in demon slayer is divided into six stages, and we’ve broken down each grueling part off the process. Webnichirin swords (among other nichirin bladed weapons) are the main weapons used by demon slayers in the demon slayer corps in order to kill demons. Weba demon slayer is only as capable as their nichirin blade. Without the weapons forged by master swordsmiths, capable of beheading a demon, the demon. Webas you saw in this demon slayer sword guide, the katanas that most demon killers use in battle are crucial to them eliminating the foes of the manga and anime series. Webyoriichi tsugikuni's bright red nichirin sword is the most potent out of all demon slayers, being able to burn on a cellular level and leave scars that even the demon king himself.