Lv40 sword could be used when ever, it just drained more stamina per swing.
a lv1 would get 2 swings outta it, lv30 would get 10-20 (its faster based combat)
being lv40 basiclly had no stamina drain.
You’d stomped abit more having it early on, just had to watch it.
I remember getting a lot of Skeleton keys during the Halloween Event just kept putting them in a large chest then when the event was oven I ran around to all the world chests and opened them without fighting any of the bosses so just save all the keys till you hit 60