Iron Will indicates the character has a reserve of will (developed as a High Cost learned ability) they can tap to increase abilities in some life and death situations.
The character has a reserve (developed as a High Cost learned ability) of will they can tap to increase abilities in some life and death situations. If fatigue damage would have caused unconsciousness, a single check staves that off for an encounter or Iron Will level x hours if not in an encounter (or until another wound). Abilities or resistance ratings can be increased for a single check to a maximum of the Iron Will level, at a cost of 5 point of Chi per level increased. Spending chi and making an Iron Will check can negate the effects of exhaustion from encumbrance (not illness) for an encounter; 10 points per measure. Spending 20 chi and making an Iron Will check can negate the effects of Incapacitation for an encounter.