Arch-Fiend
Explorer
all also add that if the DM has to figure out how something in the rules makes sense, you are basically saying that on its face value it doe sent make sense. simply phrasing it that your giving the dm the opportunity to make sense of it to best fit their narrative doesent best fit the problem of the game not having a good answer as it is write to why a spear, a weapon specifically designed to stab, with the point of it designed specifically to slip between the rings of mail or the fabric of padded armor, can possibly have 100% of its damage reduced by that armor. you as a dm can say that a roll of 15 against chainmail with a spear is an attack that you dodge instead of getting hit squarely even though the players bonus to ac is only coming from his armor and that 10 (which i actually think represents being a living creature subject to the ability to move rather than being the baseline to hit any object) but your clearly stating in the instance of that attack while the ac bonus is designed to be armor, its not armor, because reasons. you might say that the reason is that it hits one of the rings of the mail (though theres no advantage to using a piercing weapon against an armor full of holes in holes), you might say that an ac of 16 is sufficient to block max damage with a heavy mace despite in reality you can feel a weak punch through chainmail, these are weird things to say but you could say them.