The Mysterious Stranger
Doom Spirit and the Hero’s Fused Counterpart
This Mysterious Stranger is one of many Doom Spirits of that name, seeking a Champion through whom to restore the Shadows’ dominion. It helped bind Valen to the armor that made him Sepulchure and served a Master whose will it sought to fulfill. It regards Sepulchure as a failure and offers the Hero power and a throne, promising supremacy while depending on a Champion to build that future.
Fusion with the Hero makes that relationship more uncertain than a bargain between separate beings. Volgritian describes someone new, Zigfried calls them one blended person and Sigrid hopes the change can be reversed. The Hero’s personal attachments reach into the fusion: a memory of Tara and Gravelyn interrupts the new DoomKnight’s boast and leaves the Stranger gasping. The Hero also notices it beginning to sound more like them.
Sources
AQW Wiki: A Mysterious Stranger · AQW Wiki: Sigrid · The fused DoomKnight · The fusion discussed