TV-Series
Description
Mercedes is a legendary figure from the distant past in the world of Wistoria: Wand and Sword, known by titles such as the Witch Queen or the Mage Queen. Her existence is rooted in events that transpired roughly five hundred years before the main story, where she played a foundational role in the world's ongoing struggle against powerful invaders from the sky known as the Celestial Hosts. In that era, she was considered the strongest mage and a central figure who commanded the original Magia Vander. It was under her leadership that the five great mages first erected a powerful barrier to repel the invaders, creating a structure that would become known as the Mercedes Caulis, the towering edifice that still stands as the pinnacle of the magical world.

Physically, Mercedes is described as having long, jet-black hair that flows freely. Her most defining feature is her eyes, within which the patterns of magic circles appear to float, giving her a gaze that is both mesmerizing and unsettling. In fragmented memories and visions, she appears as a composed and timeless figure, untouched by the centuries. Her demeanor is calm and authoritative, yet enigmatic, and she operates on a grand, world-shaping scale rather than through petty cruelty or benevolence. Her words carry the weight of prophecy, most famously her declaration that everything is born from the dungeon, a statement that effectively urged humanity to challenge and explore these labyrinths, making her a conceptual mother of dungeon exploration as a discipline.

Mercedes's primary motivation, as revealed through pacts and memories, was to find a solution to the seemingly unstoppable Celestial Hosts. Realizing that neither magic alone nor physical swords could destroy these invaders, she initiated a grand plan to merge both powers, creating an almighty weapon known as Wis. To achieve this, she made a contract with a swordsman named Finn, who is also a key figure from the past. The terms of their pact were to combine their bloodlines and abilities, effectively creating a bridge between the wand and the sword. Mercedes declared that she would take care of the wands, referring to the world of magic, while entrusting Finn with the care of a lone sword. This agreement was made with the goal of producing a being capable of wielding the fifth element, a power that could save humanity from impending destruction.

Within the story's present timeline, Mercedes does not appear as an active participant but rather as a mysterious and potent force whose legacy drives the central plot. She is inextricably linked to the protagonist, Will Serfort. Deep within his memories lies a vision of Mercedes gently holding a black-haired infant, a scene that hints at a direct blood relation or a profound destined connection. This has led to theories that Will is the culmination of her centuries-old pact with Finn, the lone sword who can combine his physical prowess with magic to wield the power of Wis. Her influence thus transcends time, linking the past directly to the present through Will's own journey and destiny. The central tower, the Mercedes Caulis, which the Magia Vander protect and where Will aspires to stand, is a constant monument to her legacy.

One of her most notable abilities was her sheer magical power, being the strongest mage of her age. More strategically, her most significant feat was orchestrating the creation of the Grand Spell Circle, the immense magical barrier that sealed away the Celestial Hosts and created a false sky to protect the world. This barrier requires annual renewal by the Magia Vander in a festival known as Vandes Terminalia, demonstrating the lasting, structural power she commanded. Furthermore, her true genius lay in her foresight and planning; she initiated the creation of the Wis system, a power that allows one to absorb and infuse magic into a sword, effectively laying the groundwork for the world's salvation five hundred years into the future. It is believed that Mercedes herself may still be alive in some form, having survived for over five centuries, though her current status remains one of the deepest mysteries in the series.