I either just want Sanctity Aura or have the ability reworked to where it’s not deaths but damage that triggers it.
Like how about Hammer of Reckoning becoming Reckoning Aura? Every party member who takes damage while your Reckoning Aura is active you gain Reckoning. After 50 stacks you do a burst of holy energy and activate Avenging Wrath or Crusade for 12 seconds. (Crusade also starts at 10 stacks when activated.)
I think that would be at least more flavorful and Paladin-like. Allies being damaged makes you righteously angry and vengeful, sort of as a contrast to a Fury Warrior becoming more angry when they get damaged themselves.
EDIT: Oh looks like that was suggest already but worded different, well I still like the idea of having Hammer of Reckoning in some new fashion, that ability is cool.