Sword of the Godslayer
She needed an uninterrupted line of sight for that spell to work.
So she resigned herself to another spell, the last spell she learned from The Tower, before she returned home. Cassana waved her arms and with another incantation, the broken glasses on the floor rose up and coalesced right above her, forming the shape of a serpent. She pointed her staff towards the misty mass in front of her and the glass serpent lurched towards it. If she was lucky, one of the thousand fragments of glass would find its way on the drow's neck and slice it open, ending her life right there.