NOT USED: Active Defense Recharge – Your highest eligible defense die is now constant and you only gain the bonus black if you specialize. Examples: Parry – one black die with bonus black only if parry specialization. Improved Parry – one purple die plus bonus black only if parry specialization. No other effects on the Improved cards are used.
I strongly disagree with this house rule, if only because if you are a fighter with several attackers all on you, you are somehow managing to parry/block/dodge all their attacks at once, every turn. If my dwarf is standing there with three orcs beating him and three goblins shooting at him (… I'm basing this on a real situation here ), then I should only be able to block one, and dodge another, and parry a third. Letting me block all of them means I have the fastest shield in all of the Black Fire Pass.
Also if you only care about one type of defense, then that means you'll end up focusing on just one of the physical traits, and not the others, in order to improve it. Why bother getting 3 agility if you don't need dodge?
But then I don't really see anything broken here to warrant the house rule; I'd be much more concerned about how Guarded Position is so easy to abuse.