Biotic Armor is a special ability which was uncovered after long 5 years by Oblivion Hunters Scientist on their Lab on the planet Asgard . The Midgard facility made an extraordinary ability which creates a set of biotic pieces around the body which covers the body from bullets and other possible hazards. The armor is quite hard to create with out a special training. Though Individual like Alcazar or Susan Lancaster were able to create it. Back in Midgard scientists created BA omni tool which helps with creation of the armor. Once destroyed after the pressure on users concentration he( the user) may take his last breath and focus nearby biotics into a giant shockwave.
It is an analog to tech Armor .