Epic Endurance
From Compendium of Worldly Lore
Needs review
Source: Epic Level Handbook
Description: You are capable of legendary feats of stamina.
Prerequisites: Epic Level, Endurance, CON 25
Whenever you make a check for performing a physical action that extends over a period of time (running, swimming, holding your breath, and so on), you get a +10 bonus on the check.