In addition to this - just a spontaneous idea:
Why not implementing an exhaustion status (several levels) or stat that reduces strength, damage (possibly already included in strength penalty), finesse and maybe other, defensive stats - exhaustion speed depending on weapon type and armor type (or rather weight). So two handed warriors with heavy armor would quickly get exhausted and naturally be nerfed after a few actions, unless they invest in constitution (instead of boosting their damage with strength or increasing their chance to hit with finesse: make a decision). There could be talents that reduce the degree of exhaustion (second wind), special armor and weapon materials to make them lighter and skills that boost constitution or influence exhaustion directly (preventive or reactive).
Also skills might cause exhaustion (mentally or physically), depending on their power. So players would have to think of strategies, trying to get enemies down with heavy damage and risking too much exhaustion (less damage, less accuracy, even losing attribute requirements for their current equipment) or playing more defensive (less exhaustion) until armors are down and then using the more powerful attacks.
But maybe that tends to become a different game/system then...
Last edited by Abraxas*; 13/10/16 11:41 AM. Reason: Additions