You deal terrible damage to impaled foes.
Prerequisites: Hamatula Strike,
Improved Grapple, Strength 13, Base Attack Bonus +9.
Benefit: When attacking an
impaled opponent (see Hamatula Strike) with the weapon that impales
them, you only suffer a -2 penalty to your grapple check. If the check
succeeds, you deal an extra 1d6 damage.