Vorpalia is the seemingly sentient blade of Prince Renathal, kept at Sinfall after her master was flung into the Maw. Vorpalia is similar to Remornia, which is the blade of Denathrius. Unlike Remornia, who seemingly only cares about causing havoc and carnage, Vorpalia seems to care greatly about her master's wellbeing. After Renathal was banished to the Maw, she stayed by the inactive portal until help arrived in the form of the Maw Walker. She led the adventurer to find Renathal and freed both him and his followers. Prince Renathal wielded Vorpalia when battling Denathrius, but Remornia proved too fast and powerful to be countered, and Renathal dropped her as he collapsed from his injuries.
It is unknown why Vorpalia did not attack Denathrius on her own after Renathal was being held by the throat during  The Master of Lies. It is possible she did not want to make any sudden moves when Denathrius could so easily kill her prince.