Xenosaga's KOS-MOS Appears As A Rare Blade In Xenoblade Chronicles 2 - Siliconera

Nintendo revealed the very last Rare Blade on Xenoblade Chronicles 2’s official Twitter account and they saved a big one for the final reveal with KOS-MOS from the Xenosaga series.

Xenogears and Xenosaga Study Guide: The History of Xenosaga

Tetsuya Takahashi (director of Xenoblade, Xenogears and Xenosaga) holds an interview with the Persona series' director Katsura Hashino on Xenoblade 2's game development. : r/Games

KOS-MOS, Xenoblade Wiki

KOS-MOS, Xenosaga Wiki

Favorite Rare Blade(s) in Xenoblade Chronicles 2

I got Kos-Mos as my 3rd rare blade in Xenoblade 2 (marked as Spoiler just in case) : r/Xenoblade_Chronicles

Switch - Xenoblade Chronicles 2, Page 2

I will be slightly upset if there isn't a Kos-mos blade in Xenoblade 2 : r/Xenoblade_Chronicles

Xenogears and Xenosaga Study Guide: The History of Xenosaga

Xenoblade Chronicles 2, Ultimate Pop Culture Wiki

KOS-MOS, Xenoblade Wiki

KOS-MOS, Xenoblade Wiki

Xenogears and Xenosaga Study Guide: The History of Xenosaga

Xenosaga's KOS-MOS Appears As A Rare Blade In Xenoblade Chronicles 2 - Siliconera