I will show you how to craft Obsidian Armor in Terraria.
To create this cool looking armor set, you'll need the following materials:
60 pieces of obsidian, which you can find in caves by pouring water over lava and then mining the resulting blocks.
Shadow Scales, obtained by defeating the Eater of Worlds.
And six pieces of silk, which can be crafted out of Cobwebs at a Loom.
Once you've gathered these necessary items, head to a Hell Forge. There, you can combine these components to forge a complete set of Obsidian Armor.