Mythic Weapon

Mythic Weapons, also known as "The Myriad Arms of Balrahn" are twenty weapons in Final Fantasy XI obtained through the "Arms of Balrahn" series of quests available once a player is promoted to Captain Mercenary Rank. The arms are rare and powerful weapons that were once part of Emperor Balrahn's personal collection.

Mythic Weapons are one of three legendary weapon sets available to players in Final Fantasy XI, with the other two being Relic Weapons and Empyrean Weapons. However, unlike the other two weapon sets where the weapons are divided by weapon type, Mythic Weapons are divided by job.

Each weapon can only be used by one job, and is also associated with a unique weapon skill. These weapon skills do not require equipping Mythic Weapons to use, and can be unlocked separately with the Vigil Weapons that are required to start the Mythic Weapon quest. However, use of these unique weapon skills together with a Mythic Weapon grant special aftermath effects that vary according to each weapon and how much TP the player has when the weapon skill is used.

The aftermath effect is split into 3 levels.
 * Level 1: 100-199% TP. 180 second duration
 * Level 2: 200-299% TP. 180 second duration
 * Level 3: 300% TP. 120 second duration

The initial level of a Mythic Weapon is 75, but various Magian Trials may be undertaken to improve the weapons, causing their levels to increase as well.

Trivia

 * Of the 3 legendary weapon sets, Mythic Weapons are the rarest to be spotted within Final Fantasy XI because of the immense difficulty in acquiring them, requiring extreme amounts of time, effort and/or gil. In addition to this, the stats on the other two weapon sets are comparable or stronger for many jobs, so players have shown to prefer those weapons as they are relatively easier to obtain.