These arcanist shields form a barrier of what can be called 'hard light', which assumes geometric shapes and follows the movements of the wearer thanks to intricate programming.
They are unparalleled at stopping brute force attacks: 25% damage from Piercing, Burn and Concussive.
They are almost equally good at countering exotic energies: 50% damage from EMP, Mind and Warp.
They protect normally from strong energy attacks, like Laser, Plasma and Electricity. They only have trouble with slow-moving, low-powered threats: Cut and Stab deal normal damage, while Daze, Chem and Bio go through unimpeded.