- "This is the sword. The nethicite destroyer."
Given to King Raithwall centuries ago by the Occuria, the Sword of Kings was given to him so that he may cut off nethicite from the Sun-Cryst. He traveled to the Pharos at Ridorana and cut three shards off the Cryst. After uniting all of Ivalice with the nethicite's power, he gave the Sword of Kings to the Gran Kiltias to keep it safe. The Gran Kiltias did so, by sealing it in the Stilshrine of Miriam.
Seven centuries later, Princess Ashe came to Mt. Bur-Omisace, looking for a power that can counter nethicite. Gran Kiltias Anastasis told her of the Sword of Kings, and where it was sealed. The party travel to the shrine, and find the sword.
Upon reaching the Sun-Cryst with the Treaty Blade, her own sword from the Occuria, Ashe had to decide whether or not to destroy the Sun-Cryst or use its power to defeat the Empire. She ultimately decides to destroy it. However, before she can, Reddas takes the Sword of Kings from her and destroys the Sun-Cryst. Reddas is killed in the explosion, and it can be assumed the Sword of Kings was destroyed along with him.
The Sword of Kings is a two-handed Greatsword with an Attack power of 30 and an Evade of 30 with a 25% chance to perform multiple hits. It requires no license to equip. Stat-wise, it is identical to the Treaty Blade. All greatswords have 2.47s charge, and 1.2s action time, making them average what it comes to attacking speed.
Despite being able to cut through nethicite, Sword of Kings is a fairly weak weapon, its only special quality being a high combo rate and that it can't knockback opponents even if other greatswords can.
In the International Zodiac Job System version, the Sword of Kings now has an Attack power of 50 and can be equipped by all jobs.
The Sword of Kings appears as Vaan's second exclusive weapon, with ATK +63 and EX Core Absorption +20%.