Those whom this is relevant for, will know what I'm talking of, so I won't elaborate too much.

Astra2

You know where to ask.

Is this fine? Yes, the central entity does not mind this naming. It is both the ultimate weapon, and the most refined teacher and guide. A weapon should be seen as something used to destroy evil, using the form of evil. Weapons themselves are hard tools, made so hard that they have stopped growth. But constructed correctly, they cut away those things which draw resources down to maintain a perpetual retardation.

It is on this fine line that she works.

Do not mind the "2". It is a sigil in itself, used to represent Lucifer, it means worldly power. "Astra" referring to a star, creates the meaning of a star with worldly influence. It is suitable.