Guild Wars 2

I was looking at the TP and noticed that these weapons are being posted for ridiculous prices..mostly for 8-12g. I am referring to the ones that only say “Greatsword” or “Axe”.

Is there a bug in the forge that make these give a better chance at precursors?

I think they’re drops from the fractals of the mists with stats you can’t acquire from anywhere else (for example cavalier stats)