Astrologers, who preceded the sorcerers, established themselves in mountaintops that nearly touched the sky, and considered the Fire Giants their neighbors.

Unique Skill: Night-and-Flame Stance (- (26  32) FP)

Hold the sword level and prepare to cast a sorcery.
Follow up with a normal attack to cast the Night Comet sorcery, or a strong attack to sweep forward with a burst of flames.

How to Obtain

Mountaintops of the Giants - Found in a chest at the top of Heretical Rise, can be entered by crossing the invisible bridge that's connected to the broken bridge northwest of the Rise

Notes

For detailed weapon stats you can visit Elden Ring Weapon Calculator