Fire titan

A fire titan was a more powerful form of fire giant whose feet and hair were completely made of flames. They stood a little taller than a cloud giant.

Notable Fire Titans
The queen of Maerimydra after the Spellplague was a fire titan named Hledh, although later scholars described her instead as a fiendish fire giant.

Rumors also spoke of felljaws, dragonspawn presumed to have descended from a mixing of black dragons and fire titans. Felljaws inhabited the Underdark of Returned Abeir.