Mageblade attack born from ultima magic.
Ultima Sword is an ability of the Gladiator class, learned for 990 AP from the Materia Blade and costs 32 MP to use. It deals high damage.
Ultima means "the last" in Latin and many Latin-based languages. In the Spanish versions of many Final Fantasy games, it is written as "Artema," a close transliteration of the Japanese katakana.