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.

KOS-MOS Returning to Battle: DLC Season 2., Page 83

KOS-MOS, Xenosaga Wiki

GoodSmile Xenoblade Chronicles 2 Xenosaga KOS-MOS Re 1/7 PVC figure – DREAM Playhouse

Switch - Xenoblade Chronicles 2, Page 2

Xenoblade Chronicles 2, Ultimate Pop Culture Wiki

KOS-MOS, Xenoblade Wiki

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

Monolith Soft Boss Talks To Katsura Hashino About Xenoblade Chronicles 2 Development Struggles - Siliconera : r/NintendoSwitch

KOS-MOS, Xenosaga Wiki

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

KOS-MOS, Xenoblade Wiki

That One Time I Got Stuck For 15 Hours In Xenoblade Chronicles X (Siliconera) : r/Xenoblade_Chronicles