When you gain tenacity ( ), you track it using the peg slots at the bottom right side of your adventurer mat. Accumulated tenacity remains until it is spent to trigger a class ability or reduced by another effect. If you increase your tenacity to its maximum value, you cannot increase it again until you spend (or lose) some tenacity.

Tenacity is typically gained by resolving dice results with the icon but can also be gained from other specified dice abilities or effects.