I probably mis-understood what i read then. This is what i read from the Q&A, quoted from "keep it moving"::
"Its alright, I know how to make all the weapons. Well I heard someone say something about a Rune Staff, is that really a weapon? OR if there are any super secret weapons I dont know about that are not listed below.
I know how to make the following: Sagittarius, Artemis bow, Arturus, Whale Whisker, Orochi, Masamune, ultima BLade, Tournsol, Wyrmhero Blade, Scorpion Tail, Durandal, Stoneblade, and the Venetian shield."