One of the three pillars of the Holy Trinity in class design. It is meant to prolong battles as much as possible and counterheal the damage that the group takes. In newer class designs, healers are often the focus, along with the question of how to make the class more attractive. In classic designs, healers played a rather unattractive role, as they did not need to react dynamically and directly to the course of the game, but only indirectly to the HP bars of their teammates.