The Armored Wraith is one of 9 Superhardmode NPCs.
It spawns at night time OR when it's a Wraith Invasion. It also spawns in quantities of 1-2 when a Hallowed Altar is smashed.
It is capable of inflicting the Broken Armor debuff on the player unless an Undead Talisman is equipped.
Its stats are:
Immunity to: Poisoned, On Fire!, Cursed Inferno, and Confused