Raile Shaia is a supporting character in Lufia & the Fortress of Doom. He is a scientist and inventor descended from Lexis Shaia, who helped Maxim and his companions defeat the Sinistrals.
Like Lexis, Raile is a genius, but he is also quite eccentric. His inventions never look especially stable, but they end up being very reliable. He gives the party the Falcon, which serves as their ship, submarine, and airship throughout the course of the game. However, they must first spend some time tracking down Professor Shaia, traversing several continents, at least three of his many labs, and several towers and caves where he was "last seen," as well as rescuing the professor and his son when they are captured by pirates.