Race/Gender: Female elemental
Affiliation: The Fell King (loosely)
A minor elemental lord, Val'akir the Vortex was sealed away on an earthmote for many years before a powerful ritual was used to seal her away. Details of the ritual are unclear--accounts vary, but what is certain is that a storm giant died in the process of the ritual being performed, and the sealing was imperfect. Somehow, she was able to channel an aspect of herself through the seal and manifest it on the mortal plane, which took on the form of a female elf spirit the locals referred to as "the windrunner."
For a long period of time, Val'akir used the windrunner to search for capable beings that she could manipulate into breaking her seal, which she eventually found--though the adventurers didn't need much manipulation in that direction, as the storm giant brothers maintaining the seal had turned to evil in the wake of their father's demise. Seeking to somehow harness Val'akir's power and gain full control of the nearby elemental leyline, the giants were nonetheless cast down by the party, releasing Val'akir. Though she was powerful indeed, she had been weakened by the long period of being sealed away, and was defeated by their combined might.
Though Val'akir has been shown to utilize cunning and misdirection as "the windrunner," once brought into direct combat she proceeded to dispense with the subtlety, attacking with equal parts arrogance, rage, and ferocity.