It was forged by a being that was super old and didn't have any death on the horizon like mortals have, and had cruelty, malice, and a will to dominate all life poured into it ~~by another nearly-immortal being~~. It sat for two and a half thousand years doing diddly squat, passing out of all knowledge.
My point is, it's patient.
What's 500 years when compared with eternity?
And she can kill you with her brain.