Sindweller

The figure of Sindweller stands partially within the shadows, moving easily among them. As the light hits him, glimpses can be seen of a slender frame, delicate features, long hair bound back in a tight braid, and a glittering black blade. Even as the shadows return, however, the cloth bound across the eyes, and the hint of smoke behind them, can be seen, as if the orbs there still burned from the fire that destroyed them. Sindweller uses his stealth to full advantage. His light armor makes him more maneuverable than most opponents, and he darts in to attack then retreats into the shadows. Immolation and mana burn not only deal damage but distract foes from their own battle plans, making it easier for him to divide and conquer.

Speculation
He might be Feronas Sindweller or related to him.