Item description:

This save will unlock the following achievements.

Pet Hoarder - Use the Cabbage, Brain, Vial of Blood, Petri Dish, Wolf Fang and Honeycomb

Be Prepared - Use the following potions all together.
Gravitation Potion, Invisibility Potion, Obsidian Skin Potion, Hunter Potion & the Shine Potion.

Maxed Out - Fill your hearts and mana to the max with the Life Crystals and the Mana Crystals.

Engineer - Use the Wrench to place 100 wires.

Crowd Control - Use the Goblin Battle Standard to spawn the Goblin Army, then defeat them.

Ride The Worm - Use the Mechanical Worm to spawn the Destroyer and then defeat him. (Can only be done at Night)

Ophthalmologist - Use the Mechanical Eye to spawn the Twins then defeat them. (Can only be done at Night)

Bona Fide - Use the Mechanical Skull to spawn Skeletron Prime and then defeat him. (Can only be done at Night)

Vanity of Vanities- Just equip another set of armor into the Vanity section.

There are other boss spawners in this save to help defeat all the bosses.