@NautArch That would probably be his first assessment, I would likely then make a comment along the lines of "there's something about it taking time to put on armor, so technically we shouldn't have it on right now"
@Rubiksmoose The DM really has to be like targeting it for some reason tbh, because off the top of my head there is no real threat that will come up in 99% of cases
@MikeQ That's the reason I said that you might need to clarify that you may need to "fine tune" the item, because like you said you don't want to let a loophole in rules make everyone a wizard. So just make it clear, if they are understanding there shouldn't be an issue as they will also realise that you can't account for every situation
@MikeQ You could always just say to your players that you may need to "fine tune" the item if it doesn't work quite as you intend, but I kinda go back to my opinion of "if you want them to have it, then just give them it" it's your choice as DM
@MikeQ If it's scrolls that other's can use, just ask your self if it's a problem if (just for example cos I know 5e mostly) the barbarian is now able to chuck out a cheeky fireball during combat
@MikeQ Well, scrolls only I might argue makes more sense than crafted items so that could be a good move. With one at a time I am assuming you mean like there can only be one "active" copy?
@MikeQ Personally I feel that if as DM it is something that you want them to be able to do then go for it, but in terms of maybe balancing it you could chuck a limit on how often they can do it
@MikeQ I am not sure about pathfinder in detail, but my go to questions would be: is there any way already for them to do this? (I'll assume no though) Would this cause any problems in your game/setting?
@Rubiksmoose Yeah I appreciate it, I was getting so many questions for info that I hadn't even thought of initially that I definitely couldn't keep up aha
@Rubiksmoose I did do an edit with some of the stuff but you seem to have gotten the essence of everything I said, probably summed it up better than I did
Oh just to mention in relation to the session zero stuff, I am not sure if they had one but I didn't actually join until a little while in due to other commitments
The biggest thing that has happened with a character's backstory was that they were the only person capable of certain things in the city so when they wanted to go find some specific supply they couldn't actually get it