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Constitution (Con)[]

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.

You apply your character’s Constitution modifier to:

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.

Any living creature has at least 1 point of Constitution. A creature with no Constitution has no body or no metabolism. It is immune to any effect that requires a Fortitude save unless the effect works on objects or is harmless. The creature is also immune to ability damage, ability drain, and energy drain, and automatically fails Constitution checks. A creature with no Constitution cannot tire and thus can run indefinitely without tiring (unless the creature’s description says it cannot run).

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Ability Scores


This example assumes max hp on rolls.

If a lvl 7 Wizard Rico the Great has a con of 11 and total hp 28 (so, +0 modifier) levels up to 8, allowing an abilty increase, chooses to increase his con to 12 (now a +1 modifier) would gain a normal d4 hd plus 8 hp (+1 for every level so far) totaling 32 + 8 = 40.