Mercury and arsenic are usually used as materials for magic.In most cases, we make great efforts to prevent it from entering our bodies, but it always makes its way in little by little nonetheless.throwing it away...And I am sure that there is plenty of arsenic in that "gold" you are holding.Arsenic is extremely poisonous to humans.What is arsenic anyway?And arsenic too!?What!? Mercury!?tears~This is why most of us magicians have problems with our constitution!