Talk:Sheathed Blade Proficiency/@comment-24053170-20131017042729

Marian Slingeneyer(To Aru Majutsu No Index)-she wields the sword Dainsleif which if unsheathed will trigger then end of the world, so she can fight with the sword sheathed, in fact the sheath/scabbard acts as miniature black hole, which sucks in all surrounding matter and then releases it as a blade of energy allowing her to fight with the sword in the sheath.