Skylle

Skylle was the elven leader of a band of tribal raiders that called themselves the Daine. Originally from Tuluk, Skylle was forced to flee the city at an early age after bleeding the life force of a merchant in the bazaar to further her sorcerous studies. She wandered the plains east of Tuluk where she encountered a smalltribal village. She stayed with this tribe until, once again, her sorcerous abilities were discovered. Fortune shined on her and she escaped with her life a second time, fleeing into the rocky foothills of the mountains. There, Skylle stumbled upon a group of bandits that had made their home in an abandoned kryl hive. The leader of this group, a man named Daine, ascertained her sorcerous abilities and took her in. She spent many years working with Daine, and nourishing her hatred of Tuluk and the plainsfolk that had cast her out, all the while whispering in the ear of Daine and promising him power and eternal life. When she finally felt secure enough in her powers and position, she coaxed Daine into leading his people into an assault on the plainsfolk that had turned on her.
During the course of this fight, while Daine was in occupied in mortal combat with a tribal wisewoman, Skylle conjured a fireball and threw it at him, watching in delight as the flame consumed both Daine and the wisewoman. But the victory was shortlived and the tide of the battle soon turned against Skylle and her raiders. She fled with the remnants back to their cavern home and nursed her wounds.
Skylle spent the next hundred years developing her control over the band, which now called itself the Daine. During this time she also communed with many intelligences from other planes that spoke to her of transformations and power beyond comprehension. So she turned her focus to exploring her sorcerous abilities and she eventually was able to gain psionic control over the clutch queen of the nearby hive.
In the 60th year of the 20th Age, Skylle gathered to her a large number of kryl from the hive and slew the vast majority her tribe before moving across the plains to Tuluk. There, she commanded the insects to swarm the gates and destroy anything they saw moving. The horde of creatures made their way deep into the heart of the rebuilding city, slaughtering thousands. Skylle ventured into the city, unnoticed in the chaos, and silently began her ritual to gather the lifeforces of the fallen to her. As she absorbed the energy of the slain, her body began to shift and transform, mutating itself as it grew into the form of a large, winged wyvern.
But her new form was still weak from the ritual and she was not at full strength. Her attempt to assault the Tree of Life and absorb its magicks were repelled by the assembled Tuluki militia and she was forced to flee back to the mountains in the east to nurse her wounds.