Relm: I couldn't miss the chance to practice my drawing!
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Slashes at all enemies with a cutting wind.
—Final Fantasy VI description.
Vacuum Wave(真空波, Shinkūha?), also known as VacWave, Razor Gale or Air Blade, is a recurring ability in the Final Fantasy series. It manifests as a shockwave of wind, and is a high-powered magical attack.
VIRazor Gale (Air Blade in the older translations) is part of the Blitz command usable by Sabin. It deals wind-elemental damage and all enemies with a spell power of 78, it also ignores split damage. Sabin learns it at level 30.
Vacuum Wave is a Brave Attack for Exdeath that fires a blast of wind at the opponent. The blast can bounce off some obstacles and begins a Chase Sequence, and can be used twice in succession as one of Exdeath's counterattacks. Exdeath knows the ground version of Vacuum Wave initially and learns the aerial variant at Level 24. It costs 30 CP to equip and 180 AP to master.