Create a captivating character design for a dark, mystical warrior. The character wears a flowing, black robe adorned with intricate patterns, symbolizing their connection to ancient forces. The robe features deep red accents, with a striking emblem of fire emblazoned on the chest. In their right hand, they wield a long, ornate sword, its blade glimmering with flames that dance along the edge. The warrior stands in a commanding pose, exuding an aura of power and intensity. The background is a dramatic blend of dark hues, enhancing the figure's ethereal presence and creating a sense of impending action. Focus on details such as the character's intricate clothing, the fiery effect on the sword, and the overall mood that combines elegance with a hint of danger.