Hi,
With Titan Platings, Bulwark of Octavius, Sigil of the Bear King and some well chosen devotion nodes, it is possible to reach 100% Reflected Damage Reduction and, in theory, play a much safer internal trauma build than it is was possible before AoM.
Still, I’m not sure how Reflected Damage Reduction really works and I haven’t find detailed information on the subject : I guess it’s additive, but is it considered a resistance and effectively capped at 80% efficiency, or is it uncapped ?