[@XxFellsingxX]

-  Protection. When a creature you can see attacks a target other than you that is within 5 feet of you, you can use your reaction to impose disadvantage on the attack roll. You must be wielding a shield.

I had to go back and double check, but it appears you didn’t actually choose a shield as one of your two ‘slots’ for gear; on top of that, I noticed you did a greatsword example + a club. The greatsword would take ‘both’ equipment slots; i.E it and nothing else.

If you wished to use a shield, I can remove the Natural Armor reaction so you can freely use Protection as a fighting style, and thus you’d get the normal +2 AC instead.