Void Heart

Description
An emptiness that was hidden within, now unconstrained. Unifies the void under the bearer's will.

This charm is a part of its bearer and can not be unequipped.

Function
Allows access to two different endings. Prevents access to the normal ending.

Shade and Siblings are no longer hostile to you and deal no contact damage. They can always be destroyed in one hit. Void Tendrils will no longer whip out at you, you can safely swim in any pools that previously had Void Tendrils in them.

This charm replaces Kingsoul and cannot be unequipped. It doesn't use Notches.

How to Acquire
Enter The Abyss with Kingsoul equipped. A breakable floor will appear. Smash the floor and explore the revealed cave until you find a cracked black orb, and hit your own reflection with the awakened Dream Nail. Complete the dream and the Void Heart will automatically replace the Kingsoul.