Divine Veil is okay. Would like to see it trigger without an incoming heal. But well, it has some uses, even in Duty Content. In Alexander Turn 4, I use it always in both AOE Phases where players Gather. There is always an PT Heal that triggers it before the AOE DMG comes in.

Sheltron is awsome, love that talent. Even more with 3.1 to trigger shield swipe.

RA and GB are both great new Combos. I use them always.
Halone for Aggro, STR Down, followed by shield swipe, than GB Combo, followed by RA Combo. If GB Dot or STR Down are close on running out, I start one of those combos again.
With Shield Swipe oGCD I never had issues with Aggro.