An'akarta

An'akarta: An'akarta, called the Flame of Logor by some, is a fire demon (not devil) of some power. Called up in one of the last battles of the War of Fire, he was defeated by the Champions and the golden scales of his hide were set as decorations on the dome of Aramril, the tower of the Champions. Needless to say, he was very, very bitter about that.

During the Eyeblight War, the scales were stolen from the Tower by one of the shuddeni septs and restored to the demon. In return, An'akarta served the shuddeni for a time, but was once again defeated, and his scales again grace the dome of Aramril. Needless to say, he is very, very, very bitter about that.

desc (19579):

At first glance an incandescent serpent of gargantuan proportions, this
avatar of An'Akarta the Flame of Logor is a terrible sight to behold.  Its
burning body is plated irregularly with patches of molten gold, melting into
its furnace-like body and reforming at random.  Its great fiery maw is
bordered by dripping fangs of burning gold, promising death to those who
would dare approach this great beast.