cant, you need medal of altana
might go run up there and do it once or twice with seha, but i doubt it'll be able to live up to the nostaliga of doing it at 75. running through the castle when it was still dangerous, waiting with a bunch of people to go into the fight, and then doing what is still the absolute best Shadow Lord fight (and arguably one of the very best BCs) in the game was pretty much the highlight of WotG.