What is the best spirit possible to provide information and blueprints on weapons. Not just astral weapons but for physical weapons as well?
According to his mythology, he is responsible for teaching men how to make weapons.
Any others you know of, and could Azazel teach about future weapons one can build?
Any entity of war be it Gods, Demons, Angels, etc.
As for other spirits, I agree with @Velenos that probably any spirit associated with war could be useful.
and by future I mean weapons that don’t exist yet.
I know what “future weapons” means lol
@DarkestKnight I read that in the book of Enoch.