How to get Darkbringer in Crimson Desert

Finding Darkbringer in Crimson Desert gives you a great-looking two-handed sword—perfect if you're claymore-minded and want something a little more interesting than Rhett's Longsword or the Balton Longsword. Darkbringer is also a really powerful weapon in its own right, because, unlike the Soul Spear, say, its powerful ability is a detachable Abyss Gear that fires out projectiles on Forward Slash attacks.

Anyone who's beaten Crowcaller and messed around with the Crow's Pursuit Abyss Gear...