Masamune, also known as Masmune, is a recurring ability in the series. It is one of the trademark attacks for Gilgamesh, and usually inflicts heavy non-elemental damage while ignoring the target's Defense. It is generally one of four abilities that Gilgamesh will use at random.
Masamune is one of the abilities of Gilgamesh that is chosen at random. It deals heavy non-elemental damage to all enemies, having a Spell Power of 99 and ignoring the target's defense. It costs 99 MP to use as with all of Gilgamesh's abilities. Masamune is the second sword to drop onto the battlefield, and if Gilgamesh uses this attack. Masamune will glow yellow before Gilgamesh attacks the enemy party with it.
Masamune is an Iaido skill usable by the Samurai job. When used, it causes the effect Ethereal Embrace, which bestows Regen and Haste upon all allies in an area of effect of 3 with no charge time. It costs 900 JP (740 in the PSX version), and in the PSX version, the wielder may shout, "Sword of fury, inject power! Masamune!"
Masmune has unlimited uses; it increases a Robot's HP by 99 and Str by 22 when equipped on them. It can be found in Valhalla Palace after defeating Odin. Masmune deals at least 500 damage or more damage regardless defense or modifiers the target possess.