A [Vastilok] build for stripping armor from status immune enemies. As this tends to mean sentients, I have opted for using the Sacrificial set. While this build can be done using fewer forma if you are willing to use umbra forma, I haven't to allow for use of non-umbra based builds along side this.
The build focuses on maximizing attack speed to take full advantage of the 54 armor removed per shot from the [Vastilok]. This should also build up combo quickly to bring the Gladiator set bonus online.