A weapon can't replace a friend 😂
Viewing post in Witch Hat & Ears of Cat comments
Ohhhh! You've beaten the game's ultimate challenge now, and I (probably) won't make a harder boss later so... congratulations! xD
If you want some lore about his sword (and haven't already done so), you can get the mithril orb from Shida's second quest, talk to the Fire Spirit and then to chief Eino. That may or may not be foreshadowing for the next game ;)