Vitality

From Trinity Reign Wiki

Vitality is very similar to what most games call Health or HP. The main difference in TR is that we combined Health, Stamina, and Mana into one attribute: Vitality. In essence, everything a character does will cost some amount of Vitality. Most menial tasks (walking, sitting, etc) will be covered by a character's Regen. More strenuous tasks like running, fighting, and casting spells will not be covered by the character's Regen and will deplete a player's Vitality over time.

Vitality can be buffed and debuffed.