CoS I agree with, just a little something extra would make it nice. Otherwise I just use it for some AoE damage and as an oGCD way to get several enemies that just spawned.

Divine Veil I do think needs a slight tweak, namely remove the cure proc on it. It makes it very unwieldy and hard to ever time right since it's not dependent on YOUR timing, but someone elses. It just makes it's function worse than it needs to be.

I can't comment much on clemency since I only just got it and haven't gotten to play with it yet, so hard to say much about it.

Shelltron and Royal Authority I 100% disagree with, they seem fine the way they are.