This guide will let you know how to get Rolling Guard in Warframe.
You can purchase the Rolling guard from the arbitration vendor, and you can find it at any of the relay stations. You will need 20 Vitus Essence to buy a rolling guard.
To get Vitus essence, all you have to do is run arbitration missions and look for arbitration drones that spawn throughout the mission and kill them as they have a chance to drop Vitus essence when killed.
