Spellbook - Blade Wave

Spellbook needed to learn Blade Wave\n\n<Acquiring Class>\nDuelist\n\n<Skill Effect>\nScrapes the ground with the sword and inflicts damage to enemies.\nReduces Physical Defense for a certain period of time\nThe power increases if there are fewer targets in the range.\n\n<Note>\nDeleted when a higher level skill is acquired\n - Blade Storm