Action Before Thought

Your supreme sense of the battlefield, martial training,
and intuitive sense of danger allow you to act faster than
the speed of thought.
You can use this maneuver any time you would
be required to make a Reflex save. Roll a
Concentration check instead and use the result
of that check to determine the save’s success.
You must use this maneuver before you roll the
Reflex save. A result of a natural 1 on your
Concentration is not an automatic failure