▁wiel der , ▁it ▁will ▁subject ▁her ▁to ▁the ▁Per icul um , ▁a ▁test ▁designed ▁to ▁find ▁if ▁one ▁is ▁worthy ▁of ▁carrying ▁such ▁an ▁amaz ing ▁weapon , ▁she ▁is ▁brought ▁to ▁the ▁br ink ▁of ▁death , ▁and ▁is ▁confront ed ▁by ▁former ▁w ield ers , ▁who ▁will ▁question ▁her . ▁ ▁Once ▁a ▁potential ▁user ▁has ▁passed ▁this ▁test , ▁the ▁W itch bla de ▁will ▁bond ▁with ▁them ▁at ▁a ▁cell ular ▁level ▁and ▁slow ▁the ▁ag ing ▁process . ▁ ▁It ▁was ▁also ▁revealed ▁in ▁the ▁last ▁episode ▁of ▁the ▁television ▁series ▁that ▁the ▁W itch bla de ▁will ▁not ▁and ▁cannot ▁bring ▁death ▁to ▁anyone ▁that ▁has ▁w ield ed ▁it , ▁able ▁to ▁only ▁ma im , ▁dis figure ▁and ▁cause ▁pain . ▁ ▁The ▁W itch bla de ' s ▁symbol ▁is ▁two ▁circles ▁over la pping ▁one - another , ▁representing ▁the ▁light ▁and ▁dark ▁aspects ▁of ▁the ▁W itch bla de , ▁as ▁it ▁is ▁a ▁pro ponent ▁for ▁balance ▁between ▁these ▁two ▁forces ▁in ▁the ▁world . ▁ ▁Form er ▁w ield ers ▁of ▁the ▁W itch bla de ▁include ▁Sar en ▁( a ▁fict ional ▁Ar tem is - es q ▁wood ▁n ym ph ▁god dess ▁of ▁S umer ian ▁religion , ▁and ▁who ▁was ▁the ▁un inter ested ▁object ▁of ▁Gil g ames h ' s ▁un re qu ited ▁l ust , ▁and ▁was ▁h unted ▁by ▁En k id u ), ▁C ath ain ▁(