A Harlequin from Warhammer 40k in a dynamic battle pose, leaping through the air with agility and grace. She wears a vibrant, multi-colored bodysuit adorned with intricate diamond patterns and shimmering details. Her mask is both beautiful and terrifying, with a wicked grin. In one hand, she wields a deadly Harlequin's Kiss weapon, its needle-like tip glinting menacingly. The background is a chaotic battlefield, with dark, shadowy figures of enemies falling around her, emphasizing her lethal prowess. The scene is illuminated by dramatic lighting, highlighting her as the center of both beauty and danger.