Mythril armor

Mythril armor is an armor which requires Mythril Bars and must be crafted at a Mythril Anvil. Like all Hardmode ore armors, Mythril armor has three different headgear/helmet options, allowing players to focus on magical, melee or ranged combat, and each changing the set bonus. The alternative to Mythril Armor is Orichalcum Armor. Crafting a one-helmet set requires 45 Mythril Bars, or 180 Mythril Ore. Crafting all five pieces requires 65 Mythril Bars, or 260 Mythril Ore.

Trivia

 * Mithril is a fictional metal in J.R.R. Tolkien's Middle Earth writings, where it is a rare and high-quality material used for weapons and armor, and a shirt of mithril chainmail is a significant artifact in these writings. It has since become a widely used material in fantasy works, often under a minor alternate spelling such as mythril.