I think this state is too strong.
With Bryan: use "Warm Up" (25 PT) skill to get a buff on ATK and DEF for a few turns.
With Sven: use "Mean Comment" (10 PT) on Bryan to anger him for a few turns.
Now you have the greatest thief of all RPG ever. Quick, and deadly.
(A little after taking that screenshot, Bryan inflicted a critical hit and nearly 1,000 damage on Conan who has 1,700 HP! But why does Conan attack our heroes?)