Hit point regeneration is a very important stat to have on any warrior. With enough HPR, you can recover your health pretty quickly. Certain hit point and mana legendarys' will comes with 4 hit point regen. In Ultima Online, Hit Point Regeneration (HP Regen) refers to the rate at which a player's hit points (also known as health points or simply "HP") replenish over time. The rate at which a player's hit points regenerate can also be influenced by their actions in the game. If a player is actively engaged in combat or taking damage, their hit point regeneration rate may slow down.