Check the billet before comparing weapons

Compare the billet type and material commitment for each weapon you are considering. Making one sword does not leave a billet for another craft. Check formula or diagram access in game before counting a weapon as ready.

Genshin Impact identity and recipe snapshot · HoYoWiki: Northlander Sword Billet · HoYoWiki: Northlander Catalyst Billet · Forging cross-check: billet use and weapon forge duration