Combat

[Eyeball]

I think your skill as a fighter should decrease with your HP. What do you think?

All this suggestion would mean is that stronger fighters would destroy weaker fighters that much faster. Isn't combat already fast enough??

[Synthesis]

This wouldn't really be a complicated change, code-wise.

Just add negative modifiers to the "combat roll" based on your current health.

So you roll up all your crap for your attack roll, then you get a modifier after the final roll:

Excellent condition: +2
Relatively fit: 0
Moderate: -2
Not well: -4
Poor: -6
Terrible: -8
Near death: -10

Same thing for defense.

There's absolutely no reason to tie it to particular skills.  Just make it a global modifier to the attack/defense rolls.

Ugh, I hate it when I get page-rolled.