Obsidian Malphite doesn't look like obsidian

If anything he's a part molten rock formation that's in the process of cooling, but the time it would even take for lava to cool wouldn't facilitate pockets of molten and rock as shown in the skin. A pure formation of obsidian would take quite some time to form as the lava cooled. Not to mention a large enough piece of obsidian to compose Malphite. SHAM. I say rename it.