Free players can only obtain this by looting the defeated boss, Unholy cursebearer located on floors 15-17 and 30-35 of Daemonheim, by receiving it as a starting item when entering a floor, or by imbuing a spinebeam staff or better on a runecrafting altar. To find and bind the staff players only need to have 60+ Magic and 60+ Runecrafting and repeatedly enter and leave dungeons, at complexity 1 or 2 to flush the weapon out of starting kit in the Smuggler room.