Hallowed Mimic

The Hallowed Mimic is a monster added in the 1.3 update. It is found in the Underground Hallow in Hardmode. It differs from a normal Mimic in apperance, health, speed, and AI. It's AI is similar to that of a Mimic, but it can also dash at the player in a manner resembling the Eye of Cthulu's dash attack. It drops a variety of unique items on death, along with a number of Greater Healing Potions and Greater Mana Potions. It can also be summoned for 15 Souls of Light by crafting a Hallowed Key and placing it in an empty chest with Autopause disabled. The chest will then change into a hallowed mimic.