We had a great discussion at my table recently about the frequency of different saving throws, which got me thinking...
Inspired by my previous similar question, what are the most and least common saving throws?
I'd be looking to evaluate the most and least common saving throws based on not only player spells in all officially published materials, alongsidebut also other sources of saving throws (e.g. unique monster abilities, magical items, class features, etc.). This question may serve as a good starting point (thanks to GoodGuy5!).