Heat Blade

Heat Blade (ヒートブレード Hīto Burēdo) was a Fire sword formerly used by Natsu Dragneel.

Appearance
Heat Blade appears as a double-edged sword, having a medium-length thick wide yellow blade. Part of the sword is covered in a dark red lid, decorated with prominent dark orange shapes. Its hilt comprises a wrapped grip, thin wooden cross-guard and a small pommel.

Description
Upon being made contact with, Heat Blade will start overheating itself, eventually catching fire. However, the sword was destroyed when Natsu Dragneel tried to attack the Black Wizard Zeref, its actual effects during combat remaining unknown.