More hearts + Warden Dimension

First of all, when you kill the warden, it has a 90% chances of dropping the "Central Heart", with 4 echo shards, a blue torch and a flint and steel you can make the "echo lighter". With that item, you can enter the warden's dimension that haves new mobs and things, but i'll explain the hearts idea. In that dimension, you can find "Heart Ore" that when you mine it, it will give you a "Piece of Heart". Then with 8 pieces of heart and a central heart you can craft the "The Heart". When you use it, you get a bonus heart forever, inculive if you die.