To cast Legend of Lt you'll need Legend and peacemaker. To get legend return to Dr. Zeppeto with all 68 living toys and he'll give you Legend then dissappear. After that return to Orgo and spend the night at your house. When you wake up Nahani will tell you about something Knight and her found on the beach, Mr.Oneal will come out and tell you about the living toy peacemaker, Nahani will then find out that the junk was actually a living toy. Mr. Oneal will warn you but when Nahani asks you if you want to know say yes. Now take the new living toys to an extremly strong monster like Xisan and use Legend then use Peacemaker. if he survives Legend will cast LEGEND OF LT. Afterward you'll be complety healed and the enemy will be left with 1HP.