Talk:Excalibur/Umbra/@comment-178.87.153.218-20180705233144/@comment-4978876-20180707160633

Even though all Warframes were meant as a weapon to counter the Sentients, Excalibur Umbra was the first specifically created to do so by using the Infestation, being the first Warframe that was made (at least, that's what seems to be implied by the quest). There doesn't seem to be a "line" of Umbra, it looks like it was a one-off case of a single Warframe retaining his consciousness because of a traumatic event. All the others that came after him during the Orokin era were the Prime Warframes, with each being a single, unique one, until the current point in lore where Warframes seem to somehow be mass-produced. One has to wonder, though; how do they keep making Warframes? If the Sacrifice is to be believed (although DE hasn't been consistent on the process), then the Tenno would need regular supplies of humans to infest and mutate into new Warframes. Right now it seems like they only build the suits. Wait, why does the Lotus need to capture so many Corpus and Grineer...?