Owlbear Berserker( Unapproachable East, p. 44)
Your fighting style emulates the owlbear, the totem beast of your berserker lodge.
ability to rage, membership in the Owlbear berserker lodge (see Berserker Lodges in Chapter 10: Rashemen). REGION: Rashemen, Strength 13,
When grappling, you can make an unarmed attack to deal 1d6 points of normal damage with a successful grapple check. You do not suffer the usual -4 penalty for dealing normal damage.
Characters with this feat may choose the Improved Grapple feat even if they don't meet the other prerequisites for Improved Grapple.
Characters who do not have this feat can deal 1d3 points of subdual damage, or normal damage at a -4 penalty on the grapple check.