Studio Ghibli Dark Fairytale, A majestic, ethereal female warrior stands knee-deep in a dark, reflective lake at twilight. She has long, flowing black hair and a serene, powerful expression. Her attire is a fusion of ornate silver armor on her shoulders and chest, overlaid by a long, flowing gown that transitions from deep blue to turquoise, adorned with glowing, intricate patterns resembling water or ice. A sheer, translucent cape billows around her. She holds a magnificent, glowing sword vertically before her; its blade emits a brilliant white light, while its hilt and crossguard are crafted from silver with intricate Celtic knotwork and embedded with large, glowing blue gems. The background features a dramatic sky with dark, swirling clouds, pierced by a warm golden sunset on the horizon, casting light over distant, misty mountains and silhouetted pine forests. The water's surface is calm, reflecting the figure and the sword's light, with gentle ripples emanating outward and small, white water lilies floating nearby. The overall atmosphere is mystical, epic, and serene.