Talk:Excalibur/@comment-67.219.123.235-20180706193245/@comment-29781487-20180716065615

Its actually unknown, DE said that despite all frames'll get prime versions not all'll get umbra ones, thus opening the possibility of releasing more of them. However it calls my atention that in the quest (SPOILERS) The Sacrifice, Ballas calls Excal Umbra 'Umbra' as if he were mentioning his name... and that makes me doubtful since if they were to release more Umbra frames, that scene'd be as awkyard as if he were to refer to any  prime warframe as just 'Prime'.

In short words what I meant is that it seems Umbra might be the name of the Dax soldier transformed into that Excal, and thus, there'd not be any Umbra frame else than him.