Luciel, the Eternal (Japanese: 悠久のルシェル, Yūkyū no Rusheru) is a Tyrant in Xenoblade Chronicles X. It is a member of the Millesaur family. It can be found at level 92 at Janpath Lake or West Janpath Plain in Primordia. It walks to the southwest shore of Janpath Lake and drinks for a while before walking to the southeast side of the lake and drinking for a while before repeating the process.