Blazing Rapier

The Blazing Rapier is a one-handed sword that is favored by Fury Warriors. Some rogues don't like this sword because the DoT proc can break Gouge.

Source
Blazing Rapier is crafted by Blacksmiths with a skill level of 280 who also have the Swordsmith specialty.

The components are:
 * 10 Enchanted Thorium Bars
 * 4 Essences of Fire
 * 4 Hearts of Fire
 * 2 Azerothian Diamonds
 * 2 Dense Grinding Stones

The recipe is a quest reward from the quest given by Seril Scourgebane in Winterspring. You must have the Swordsmith blacksmith speciality to receive this quest.