Warrior Spirit was a rules variant that gave some extra bonuses to unarmoured fighting that has been incorporated into the core rules.
Barghests, faehounds, and Ghouls have overwhelm, under bear overwhelm is listed as a "umiversal beast rule" meaning all beasts have it.
Iron Warriors and Stone Golems have the fortification ability.
If that stuff isn't in your pdf then download a new pdf.
I don't recall off the top of my head what update of the game is the print version.
Thanks for the speedy and helpful response!
Everything mentioned is indeed in the print version, except...
I cannot find "Warrior Spirit" in the hardcopy book nor the latest PDF I just downloaded from DriveThru RPG (which is where I received my PDF copy when I bought the hardcover).
Is there another PDF floating around with the aforementioned "core rules" that contains "Warrior Spirit?"
Again, thanks for any help. Your description of the "Warrior Spirit" rule sounds pretty nifty!
--Joe
Ah sorry for clarity, warrior spirit was a variant rule I added here that has since been fully incorporated into the text of the game. https://rosalindmc.itch.io/valiant-quest/devlog/235303/side-quest-warrior-spirit