[Mastery Book] Ninja Ambush 30 ([技能書]忍影瞬殺30)

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	[Mastery Book] Ninja Ambush 30 ([技能書]忍影瞬殺30)
This increases the master level of Ninja Ambush up to 30 with 50% of chance. Job : 4th Advancement Thief Condition : Skill level above 15
掉落怪物: 海怒斯