Indomitable

You never tire in combat the heat of battle only serves to fuel your ferocity and when you aren't fighting or ******* you're training, mastering the various ways you can defeat an opponent aside from just smacking them with a weapon. Not only do you learn 3 additional stamina abilities, you gain + 1 to your strength modifier and if your class has Second Wind with this feat any time you use Second Wind you restore stamina points equal to 10 x your constitution modifier. (Example, if your con mod is + 2 you regenerate 20 stamina points etc.)