What would you call the weapon she's holding?

A glaive? :|a

angel of death?!

naginata

Ah, that might do it

Trying to figure how to describe it for a blind person basically

"Lunafreya holding a Naginata and looking forward seriously in front of a cloudy background. She's wearing a dark, baggy mantle over gray pants and boots. Her left arm is hanging partially out from under the mantle and has dark veins with a cloud of miasma drifting off of it. She has on a fingerless white glove on the hand."
That might do it :|a