Stardust armor

Stardust Armor is a Hardmode armor set that is crafted using Stardust Fragments and Luminite Bars. This set increases the max minion count and the damage that the minion does, making it ideal for summoning minions and weapons. A full set summons a Stardust Guardian which follows the player around. The Guardian can be placed as a stationary minion by double tapping down and pointing to a location. When hit with the Stardust Guardian's explosion, enemies target the Guardian instead. It cannot be placed midair much like the Staff of the Frost Hydra. You may return the Guardian to yourself by holding down.

Crafting this set requires a total of 36 Luminite Bars (144 Luminite) and 45 Stardust Fragments.

Trivia

 * The Stardust Armor set effect bears a strong resemblance to Star Platinum, an iconic character from Stardust Crusaders, the third story arc of the manga JoJo's Bizarre Adventure.