Guild Wars 2

I am starting work on my legendary for my main (as well as working for the crossing on an alt).

I was wondering, is the precursor crafted by using rares or exotic staffs in the mystic forge?

Yes it is.

Pref. 4x staves in order to get a staff in return aswell.

Okay cool so not just exotics, but rares have a chance as well. Cool thank you