I'm trying to build up my own magic item thats not currently in the compendium for use with the Roll20 OGL sheet for 5e. We're playing Lost Mine of Phandelver and one of my players has picked up the Staff of Defense. Its not in the compendium, so I'm trying to build it up. I added in a Quarterstaff so it can be used as a weapon, but is there a way I can make it so it adds in the +1 to armour when it is equipped, as no doubt we'll forget to remove it if/when it breaks.