Draws out the hidden power in thief swords.Final Fantasy IX description
Soul Blade is an ability for Zidane, learned for 35 AP from The Ogre. At the cost of 6 MP, it inflicts the status of any thief sword Zidane has currently equipped at a 99% accuracy to one enemy. If used with a dagger-type weapon, it will miss.
The ability's name refers to Japanese swords and warriors being associated with Shinto, a religious belief system where all elements of the world are embedded with spirits. It was said that swords were a source of wisdom and emanated energy to inspire the wielder, and that a part of the swordsmith's spirit was transferred into the blades they crafted.