Stalwart

Confers massive stress resistance (minimum of 50%, could be as high as 90%, exact number to be confirmed). Randomly at the start of Stalwart character's turn, they will say some battle-cry of sorts, and then recover 15 stress. Considering you get dropped to roughly 40 stress or so (not sure if this number is random), it will be very difficult to reach 100 stress again as long as your character is Stalwart.