When most people think of key comics, they think of the first appearances of certain characters. However, we also know about a lot of inanimate objects, mystical artifacts, and powerful metals in comic book lore. Modern comic book fans debate Mjolnir, adamantium, Pym Particles, and vibranium as if they were real.
There are a lot of key comics featuring the first appearances of powerful metals, objects, and mystical artifacts that you can invest in as well. Here are 10 you should check out now.
