Hit Dice

Hit Dice
Each time a character gains a level, they add a number of Hit Points to their maximum, based on their class and their Constitution score. At lower levels, this number is based on a roll using the class’s Hit Die; so a Fighter would roll a d10 and then add a bonus from Constitution.

Maximum Hit Dice
Each class is limited to a number of Hit Dice as noted in the table below. Once a character has gained this number of Hit Dice, they no longer benefit from additional Hit Dice; instead, they receive a fixed number of Hit Points at each level. This fixed number is not modified by the character’s Constitution score.