(Menace) Cloaked Sand Demon

Lore
Countless angels met their demise in the struggle against the Cursed Kingdom, only to be immediately brought back in a twisted form as punishment for their failure. They were morphed into mute, grotesque, unthinking creatures driven purely by their base desires... which, for the former proud denizens of the Heavens, was the ultimate punishment.

Acquisition
?

Name origin
?