Dadaan, the Strongest Prone (Japanese: バイアス最強のダダーン, Baiasu Saikyō no Dadān) is a Tyrant in Xenoblade Chronicles X. He is a Ganglion Prone. He can be found at level 77 at Scabland Fortress next to FN Site 307 in Oblivia, accompanied by The Dadaan Girls, after completing Chapter 12. Dadaan has the ability to instantly destroy all Skells being piloted by the party if the player uses them during the battle for more than 10 seconds. He will also enter invincibility periods while summoning Dadaan Squad Members.