When a player character (PC) reaches a new level, they roll for hit points. If the result is less than the Average ((MaxDice ÷ 2) + 1) for their class, they may choose to take the average instead.
This rule aims to enhance character durability. It is particularly useful in challenging campaigns. While its impact is minimal at lower levels, it becomes more significant over time. Note that this rule does not necessarily make the game easier; it simply reduces the likelihood of losing a character due to minor mistakes or unlucky rolls. However, the overall difficulty of the game remains unchanged.
It also allows me to throw more challenging encounters at the party without fear of accidentally killing a character.