[Fast Blade][Riot Blade][Royal Authority][Atonement][Atonement][Atonement][Holy Spirit]
Royal Authority hasn't been changed, it's 3 Sword Oath and 1 Divine Might, because level 76 is the first time Sword Oath was added to Royal Authority and includes Atonement which uses it.
[Fast Blade][Riot Blade][Atonement][Atonement][Atonement][Holy Spirit][Holy Spirit]
It was Atonement that needed to change, because by adding it unchanged, it removes some of the Divine Might you had at level 70, causing a shortage of buffs. Also, just because Atonement was given new functions doesn't necessarily mean the old functions had to go away, which is why I included multiple new blocks reflecting the functions.
We end up with +1 Divine Might at 80 because Confiteor was added, and +4 Divine Might at level 90 because Confiteor combo was added as well. They're extending the rotation, rather than enhancing it. Hmm, having Confiteor combo have some form of interaction with Divine Might is something I haven't tested yet, not so much for potencies but for effects. At level 90, you can simply use 2 Shield Bash blocks with Atonement as filler only and the rotation naturally lines up without overcapping on buffs, because Confiteor combo extends the rotation that much. This couldn't be done at level 80 because Confiteor was by itself. However, there would be a potency loss because of the new effects of Sword Oath, so you'd be inclined to use Atonement as a combo or do Royal Authority twice in a row which would leave Atonement with little use unless you're recovering or prepping for disengagements.
