Sisu

A mystic trained in the Sisu philosophy becomes highly determined, brave, and resilient in the face of adversity. The effectiveness of many of the mystic's skills, and some of their base attributes improves as a function of a low percentage of remaining health.

A sarira left behind by a Sisu monk will grant its bearer a bonus to a specific attribute inversely proportional to their percentage of remaining health. Eg, one sarira may give its bearer +1 Muscle when they are at full health, and +9 Muscle when they are at 10% health or below.

See Sisu.