Nafien is a level 55 quest giver located outside Timbermaw Hold in the contested territory of Felwood. He is friendly to all players, unlike other members of Timbermaw Hold.
He has the following quests available which increase Timbermaw faction:
[55] Deadwood of the North
[55] Feathers for Nafien (repeatable faction turn-in)
[55] Speak to Salfa
See List of Felwood NPCs and the Timbermaw Hold reputation guide.