The Bloodstained Ritual of the Night Fiend Fang item is one of many craftable items in the game. Here is how to find the Fiend Fang in Bloodstained.
"Following a successful Kickstarter campaign, Koji Igarashi and his studio, ArtPlay, along with 505 Games, released Bloodstained: Ritual of the Night in 2019. Bloodstained is a 2.5D Metroidvania and a true spiritual successor to SOTN. Following years of updates, Bloodstained finally gained “Chaos Mode,” the promised co-op mode earlier this year. Thus, it’s time for us to review the game and what Chaos Mode has to offer," says Co-Optimus.
Bloodstained: Ritual of the Night has received a bunch of new DLC, including two new gameplay modes, for free.
"Publisher 505 Games and developer ArtPlay, Inc. today release a new update (v1.5) on PC, Xbox and PlayStation including two free game modes and a free Shantae cosmetic pack, plus three premium DLC cosmetic packs to their gothic smash "Bloodstained: Ritual of the Night"." - 505 Games and ArtPlay, Inc.
