If taking the full shield mastery line, twisting in Legendary Shield Mastery becomes a no-brainer, yes?
Correct: that's +7% doublestrike and +15 PRR, so it helps both offensively and defensively. The tricky question is: when should you make your way to Unyielding Sentinel to be able to Twist it?
Semi-retired Build Engineer. Everything was better back in our day. Get off my lawn.