Increases the health of the bearer and grants two extra masks. Open in app Facebook Tweet Unbreakable Heart: Base. I found it to basically be nail binding but harder. Anyways, below you will find a complete list of all charms with their respective locations in the world of Hollow Knight. It�s very useful even in late game but gets overshadowed by Mark of Pride. FWIW, you don't need to fight Traitor Lord at this point. This page includes information on Hollow Knight's many powerful Charms.