When fighting with two weapons, does the Combat
Expertise feat apply to both weapons individually or
together? For example, do I take a –2 on attack rolls for
both weapons to add +2 Armor Class? Or do I take –2 on
attack rolls for both weapons for a +4 bonus to Armor
Class?
You get the AC bonus once. The attack penalty applies to
all attacks you make until your next turn. If you use two
weapons to make extra attacks, the penalty applies to the
attacks from both weapons. It also applies to any attacks of
opportunity you make before your next turn.
When using Combat Expertise or Power Attack, does
the penalty you take also apply to opposed attack rolls
(such as when you are involved in a disarm or sunder
attempt)? What about on grapple checks?
Yes and no. Anything described as an attack roll (even an
opposed attack roll) can be affected by Combat Expertise or
Power Attack. A grapple check isn’t an attack roll, so you can’t
use Combat Expertise or Power Attack in conjunction with it.
FAQ