This sword has 4 refined versions called 히페리온, 아스트레아, 스킬라 and 발키리
Each refined version is crafted using their respective precursor relic dropped from Giants that spawn in the Catacombs Floor 7 blood room. Each of the refined versions also specialize in different classes, for example Astraea is a tank sword that gives more ❈ 방어력 while Valkyrie is better used for damage with its higher ❁ 데미지, ❁ 힘 and ⫽ 흉포.
Furthermore, the refined swords keep the +50%❁ 데미지 to Withers ability while adding a new ability that grants the sword +1❁ 데미지 and +1 class specific stat per catacombs level to the sword.
네크론의 칼날 두루마리 are items that can be applied onto a Necron's Blade to give it abilities on right click. The abilities are stackable and can be combined into a larger ability, Wither Impact. Instead of displaying separately it displays as a single ability with the names combined. There are 3 scrolls: Implosion, Wither Shield, and Shadow Warp.
