Constitution

Constitution measures health, stamina, and vital force.

Constitution Checks

Constitution checks are uncommon, and no skills apply to Constitution checks, because the endurance this ability represents is largely passive rather than involving a specific effort on the part of a character or monster.

Uses of Constitution

Hit Points

Creatures add their Constitution modifier to the amount of Hit Points they gain on level up. This increase is applied retroactively.

Concentration Check

Whenever you take damage while you are concentrating on a spell, you must make a Constitution saving throw to maintain your concentration. The DC equals 10 or half the damage you take in that instance, whichever number is higher.