The V Rising Ancestral Forge is a new crafting station that was introduced as part of the recent Gloomrot expansion. Though you have to jump through a few hoops to unlock it, what makes this forge special is that it can restore legendary shattered weapons that high-level V blood bosses drop, letting you use them for yourself.
Repairing these legendary weapons is a costly process and quite the grind, so it's definitely not worth undertaking until you're firmly in the endgame. That said, there aren't too many steps to unlocking the Ancestral Forge itself so you can start making plans, gathering what you need, and pondering which legendary shattered weapon you might want to restore based on its randomised attributes.
