It must be doing something, else the previous Arishok would not have fallen.

[The moment the blade vanishes, Notas narrows her eyes. She had assumed briefly that perhaps it was simply an enchanted blade, but perhaps not so. But she has never seen a manner of magic like that before. Certainly not from anyone in Tevinter.]

Tal-Vashoth. I left Sehereon some years ago.

That weapon you used. Describe it.