This tool serves as a mechanism to determine the average health of player characters and non-player characters within the fifth edition of a popular tabletop role-playing game. It typically automates the process of rolling hit dice and adding constitution modifiers, providing a quick estimate of the total health pool. As an example, a character with a d8 hit die and a +2 Constitution modifier will have their hit points calculated by rolling a d8 and adding 2 for each level.
The utility of these mechanisms lies in their ability to streamline game preparation and balance encounters. Game masters can rapidly assess the survivability of their adversaries and adjust encounters to provide a challenging but fair experience. Historically, the calculation of hit points has been a manual process, prone to error and time-consuming. These tools reduce the potential for miscalculation and free up the game master to focus on other aspects of game management.