Timeless Traveler's Hood

The materials come out of the Corruption, so a crimson world cannot make this outfit without importing the ingredients or building an artificial corruption biome, and a Corrupt Statue will spawn the enemies that drop the chunks you need. The second gate is the dungeon. Bones only start appearing once Skeletron is out of the way, so this is not an early costume despite looking like one. Crimson worlds get the Plaguebringer's set instead, the same idea in the other flavor.

With the Hood, Cloak and Footwear all equipped, the game adds drifting soul shapes around the character that look like the apparitions off a mana pickup. The effect needs every piece, so swapping the hood for another headpiece kills it. Male and female sprites are the same.

This is one of six outfits picked from the Journey's End vanity contest, submitted by a player under the name DisRicardo. Most of the winners can be crafted the moment you spawn. This one and its crimson twin are the only two that make you clear a boss first.