Complex sentence: Although the only thing we see of her in the anime is some legs and a cigarette, she did create Xellos.He servers her as a right hand man, and everything Xellos does in the end leads back to her.
Split into simpler sentences: Although the only appearance seen of her in the anime are legs and a cigarette, she did create Xellos. He serves her as a right-hand man, and everything Xellos does in the end leads back to her.