Bubble Hearth refers to a paladin who escapes PvP, or any other type of combat, by using Divine Shield and then their Hearthstone — generally viewed as a cowardly act and those who use it often mocked for doing so. Currently, the only current ways to stop this after the paladin has cast Divine Shield is the Mass Dispel spell from a priest of level 70 or higher or a warrior's Shattering Throw ability or of course, High Overlord Saurfang's cleave. Also, a fortune by Sayge tells: "Divine Shields and Hearthstones do not make a hero heroic." There is even a song made by players relating to this act: