These styles are enumerated by Sun Lutang as TÃ ijÃ quÃ n , XÃ ngyÃ quÃ n and BÄ guÃ zhÇ ng , but must also include BÄ jÃ quÃ n and the legendary Wudang Sword . These styles were enumerated by Sun Lutang as TÃ ijÃ quÃ n , XÃ ngyÃ quÃ n and BÄ guÃ zhÇ ng , but most also include BÄ jÃ quÃ n and the legendary Wudang Sword .