Cobalt armor

Cobalt Armor is an armor set which requires 75 Cobalt Bars, or 225 pieces of Cobalt Ore, to craft in total, and is blue in color. Like all Hardmode ore armors, Cobalt armor has three different headgear/helmet options, allowing players to focus on magical, melee, or ranged combat, and each changing the set's bonus. Peculiarly, with the exception of the Cobalt Helmet, each piece of this set has less defense than its preceding tier of Molten Armor, making this set arguably useless, especially in version 1.2 or any version later, where this is no longer part of the Hallowed Armor set.

A full set of Cobalt Armor creates an after-image/motion blur effect similar to the Ninja clothes, Shadow armor and Necro armor.

Trivia

 * The hat, helmet, and mask appear very similar to a straw hat, a samurai helmet, and a ninja mask, all of which are common in media portrayals of Feudal Japan.