This one shot bubbled up because of all the agent talk.
Cipher Nine AU: Trump Card
Agent Chapter 2 spoilers 500 wordsish
I love it! Also your note is fantastic and I would take notes if I played trick-taking games, which I don't because they're terrifying and I never know what to play when.
My AUs tend to start with an event too vicious for me to stomach as canon. Maybe I should do another snuggly offshoot after this run ends to cheer myself (and perhaps my readers) up.