The entire time I've read the Cosmere I didn't think too much about the magic systems. heavy metal poisoning gives you superpowers, inhaling mystery glasses makes you fly: it's fantasy these things happen. I know there are laws that govern how the systems work and since I joined the Shard I've been wanting to learn about them. I'm definitely a beginner when it comes to this stuff and I was hoping to get a crash course in the basics of Investiture and the rules of magic systems so I can know how things like Surgebinding and the Metallic Arts work. I've read every Cosmere work but I hardly know anything about mechanics.