Firebrand is type of tree found solely in Anubeth. The locals, mostly followers of Surtur, refer to them as Surturs Toothpicks. Firebrand has an onyx color that glistens like a well-polished gemstone when wet. It is an unnatural wood that only began to grow a few years after the activation of the Pumice Throne. The first saplings rose in the rich volcanic soils of Rafthurgar.
Firebrand is unaffected by fire which makes it a very useful material for the fiery landscape around it. Unless fortified with magic or still living, firebrand exposed to extreme cold will begin to rapidly rot, becoming useless after 1-4 days. This vulnerability to cold is said to be a magical curse put upon it by the sentience residing in the Glacial Throne.