Surt

Surt (スルト) was an Fire Giant Boss NPC from YGGDRASIL.

Background
In the past, Surt was a character debated by the members of Ainz Ooal Gown on whether they should face him. When defeated he would drop the rare item called "The Flame of the Beginning."

The Men in the Kingdom Arc
While watching Sebas Tian and Demiurge argue the fate of Tuare, Ainz was reminded of the time when Touch Me and Ulbert Alain Odle argued in the Great Tomb of Nazarick. One such argument was whether to go after Surt or the Ice Dragons.

Trivia

 * Surt is the first giant to be mentioned in the Overlord series.
 * Compared to the Ice Dragons, Surt has a lower drop rate.
 * Surt is mostly based on the Norse giant Surtr, who was said to engulf the world in flames at Ragnarok.