Fenmarel Mestarine (FEHN-muh-rehl MESS-tuh-reen) is the eternal outsider, the solitary Power who holds himself aloof from his fellows. He is venerated by outcasts from elven society, many of whom have withdrawn voluntarily in response to perceived slights, as well as by elves who have been isolated from the main body of their race and who live in wild, relatively uncivilized rural groups. Although he does not actively seek the worship of mortals, Fenmarel serves as the teacher and protector of those who turn to him, one who is silent and subtle, instructing his people in survival, spying, camouflage, deception, and secrecy.

Fenmarel dislikes the company of other Powers, and he avoids relationships of any sort, whether they be alliances or mutual enmities, whenever possible. The Lone Wolf is even somewhat of an outcast among the elven Powers, his nominal allies, although he supports them in their endless war with the Spider Queen and her followers. He has removed himself to Limbo voluntarily. Fenmarel was once Lolth's lover, one of the first to be seduced by her power and promises, but he turned away from her before completely slipping over to the dark side, for which she has never forgiven him. Neither has Fenmarel forgiven Lolth for her breach of faith with the elven race, and thus he hates the dark elves.

Fenmarel is eternally sullen and serious, a perfect counterbalance to fun-loving Erevan Ilesere. He has no interest in communicating with members of other pantheons unless absolutely necessary, and when he does speak he is usually bitter and cynical. Although he tries to avoid commitments of any sort, the Lone Wolf always abides by his word, no matter how reluctantly it is given. Fenmarel frequently dispatches his avatar to patrol the elven borders in disappearing woodlands, jungles, and similar environments, not unlike Corellon in more sizable homelands.

The world is a harsh and unforgiving place, with uncompromising demands on those who would forge their own path. Rely not on others for protection, for betrayal comes easily, but on you own skills and those taught to you by the Lone Wolf: the skills of camouflage, deception and secrecy. Follow the way of the Lone Wolf, for his is the path of self-sufficiency. Fear not hard work, for the fruits of your labor prove your worth to yourself.

For the most part, members of Fenmarel's clergy are found only among lands of feral elves in the wilderness. Outcasts from elven society who make their way among other cultures are typically lay followers and not priests. Members of Fenmarel's clergy instruct their fellows in the skills first taught by their patron, including how to spy, survive on their own, engage in deceptions and guerilla tactics, and use poisons to take down enemies with subtlety, but otherwise they have few formal responsibilities aside from ensuring their personal survival.