Machine King Quos are enemies in Xenoblade Chronicles X. They are Ganglion Quos and can be found at level 51, level 55, level 57, or level 59 in Sylvalum, around North Cinderdunes, Anvil Rocks One and Two, Banshee Cave, above Badr Stronghold, Cavernous Abyss, and Abyss Reservoir.