Ferocity

Prerequisites

Constitution +1.

Benefits

When you reach 0 stamina, you can enter into a state of ferocity to stave off the exhausted condition for a number of rounds equal to your Constitution modifier. While in this state, you can continue spending stamina points and go into the negative, but all of your actions cost 1 additional AP.

At the end of ferocity, make a DC 10 Constitution save. If your current stamina is negative, add it to your save check as a penalty. On success, you are exhausted as normal. On a normal failure, you fall unconscious. On a critical failure, you die.