I couldn't miss the chance to practice my drawing!
Break Blade (ブレイク斬り, Bureiku Kiri?), also known as Break Sword, Stoning Slash, or simply Break, is a recurring ability in the series. It is generally a mid-powered Spellblade ability that gives the user's physical attacks a chance to inflict Petrify, either giving the user the status as long as they don't use another Spellblade ability or outright dealing damage. It generally requires the Break spell in order to use it.
Break is a level 4 Spellblade ability that costs 6 MP to cast. It makes the user's physical attacks non-elemental and grants them the ability to inflict Petrify on each physical hit.
Stoning Slash is part of the Magic Blade skillset, used by the Red Mage class. It costs 20 MP to use and inflicts damage as well as Petrify.