The more I actually think about it, I have more a battle nun than a warrior nun in mind (not sure on the difference between the two), I do appreciate the feedback though
In that case you can g owith just about anything.
Classes with religious undertones (or get their powers from their god) are the more obvious ones:
Paladin, monk and zealot barbarian are more martial focused
Cleric, divine soul warlock and celestial warlock are more spellcasting focussed
But you could go away from the standard path for example.
If you serve a god a nature you could go druid or ranger
You could be an arcane caster who for background reasons has decided to join the order of nuns
You could be a rogue who has had a religious encounter that caused them to turn from their thieving ways and instead use their skills to serve their new found god.
Very interesting, thank you
Just wanted to say: Battle Toads in nun outfits.