Having completed Tiamat campaigns at 15th level, my paladin had some time to re-think his worldview. Now he wants to change from Oath of Vengeance to the homebrew Oath of the Common Man.
Paladin of Common Man roughly upholds the following tenets:
He stands as protector of peasants and laborers against oppressing lords and other folks preying upon their hard toil. His powers are drawn upon respect for the value of common men and their labor, their shared burden and effort. He seeks justice for destitute masses guided by revolutionary spirit to change the world for the greater good of honestly working people.
I've presented my group the Common Man paladin's Oath several months ago (just for fun) and they seemed OK with it, GM included, so I think that there's not a problem with this oath, but it's not clear to me how to transition an existing character to it.
I am aware of rules for Oathbreakers but this is certainly not that case. My paladin isn't going to be some villain commanding undead hordes but a hero of masses of common labourers, neglected and abused by their lords and ravaged by war. Irreligious perhaps but not evil.
Are there any rules for renouncing an oath and replacing it with another one?