Gunnbren

The gunbren its an enemy in Torchlight II Its one of the couple of elite blacksmiths of the sturmbreonen, with the stennbrun, the another elite blacksmith, these two smiths guarding the armor schematics for the quest "The warbeast armory" The gunbren wield the fire sword who the stennbrun its smithing it. Its attribute its fire.

Special ability
Their attacks can inflict the fire state.

Trivia
They said they are elite, but in fact, they are champion enemies, so, probably, the elite will be about the art of the smithing.