Talk:Excalibur/@comment-35895446-20180616105146/@comment-125.239.18.205-20180617091631

Umbra was a Dax that was Infested into becoming a Warframe - a Body with a Mind. Prime warframes and regular ones are Bodies that require the Operator to be their Mind.

Umbra was born, tortured and corrupted, Prime are made mindless.