Constitution

Constitution represents your character’s health and stamina. A Constitution bonus increases a character’s hit points, so the ability is important for all classes. Some creatures, such as undead and constructs, do not have a Constitution score. Their modifier is +0 for any Constitution-based checks. A character with a Constitution score of 0 is dead.

You apply your character’s Constitution modifier to:

  • Each roll of a Hit Die (though a penalty can never drop a result below 1—that is, a character always gains at least 1 hit point each time he advances in level).
  • Fortitude saving throws, for resisting poison, disease, and similar threats.

If a character’s Constitution score changes enough to alter his or her Constitution modifier, the character’s hit points also increase or decrease accordingly.

Temporary Bonuses: Temporary increases to your Constitution score give you a bonus on your Fortitude saving throws. In addition, multiply your total Hit Dice by this bonus and add that amount to your current and total hit points. When the bonus ends, remove this total from your current and total hit points.

Ability Damage: Damage to your Constitution score causes you to take penalties on your Fortitude saving throws. In addition, multiply your total Hit Dice by the Ability Damage penalty and subtract that amount from your current and total hit points. Lost hit points are restored when the damage to your Constitution is healed.

Regarding Constructs and Undead

  • Constructs do not have a Constitution score. Any DCs or other Statistics that rely on a Constitution score treat a construct as having a score of 10 (no bonus or penalty).
  • Undead creatures do not have a Constitution score. Undead use their Charisma score in place of their Constitution score when calculating hit points, Fortitude saves, and any special ability that relies on Constitution(such as when calculating a breath weapon’s DC).

Constitution

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