I’ve not been following Swords Comic but I’m familiar with this scene in RPGs. The very minute a magical talking item stresses how truthful it is; your players know not to believe a word it says. Gamers are wisely cynical.
You can find the whole story at SwordsComic.com and support it with Matthew J Wills’ Patreon. If you want to look around a little bit more then checking out Wills’ official site and accompanying Facebook page is recommended.