Replaying Laxius Force after a loooooooong time lol and I'm in the Magical Trial of Psyche, I completed everything and the only thing left for me to do is to open the door that only those who have good weapons can enter. I equiped Random with Legendary Sword, Wendala with Metallist and Marion with the Rotor Ghog and nothing, the walkthrough says that all I had to do is equip the Rotor Ghog and it would open but that didn't happened. What's wrong?
EDIT: I left the trial without opening this door.