<> I may have missed it but does feint work on monsters?
I don't know but there cases where feint won't work. For example if you are using an Initiative card for a group. You can't feint a whole group, especially if you are not facing all them yourself. And it probably won't work against at least some monsters and at least some animals.
Although, in our latest testsession I threw in four snakes in a room (I have been using old D&D adventure modules for our testsessions). I let the four snakes share Initiative card and I also told the players that they can't Feint the snakes just because they shared Initiative card. But after that sentence I added "... unless you have a really good discretion how to feint four snakes at once". One of the player said that he got an idea. He lit a torch and explained that he waved the torch in front of the snakes and that should count as a feint. I accepted (of course I did, a little bit of Indiana Jones feeling to it).