Can these two rage powers be stacked?
Prerequisite: Barbarian 10
Benefit: While raging, when you confirm a critical hit with your gore attack, you deal 1d4 points of Constitution damage in addition to the normal damage for the gore attack.
Special: This rage power is available to wereboars, wereboar-kin and those who associate with these creatures.
Bloody Fist (Ex)
Prerequisite(s): Barbarian 12
Benefit(s): While raging, the barbarian may attempt to punch through an opponent's flesh and rip out one of its vital organs. In order to do so, the barbarian must confirm a critical hit against an opponent with a natural attack or unarmed strike. The barbarian deals damage as normal for a critical hit and the opponent must succeed at a Fortitude save (DC = 10 + 1/2 the barbarian's class level + the barbarian's Strength modifier) or take 1d4 points of Constitution damage as one of its vital organs is ripped free from its body.
This power can only be used once per rage.
This gives you your gore attack
Fiend Totem, Lesser (Su)
Note: Totem rage powers grant powers related to a theme. A barbarian cannot select from more than one group of totem rage powers; for example, a barbarian who selects a beast totem rage power cannot later choose to gain any of the dragon totem rage powers (any rage power with “dragon totem” in its title).
Benefit: While raging, the barbarian grows a pair of large horns, gaining a gore attack. This attack is a primary attack (unless she is also attacking with weapons, in which case it is a secondary attack) and is made at the barbarian’s full base attack bonus (–5 if it is a secondary attack). The gore attack deals 1d8 points of piercing damage (1d6 if Small) plus the barbarian’s Strength modifier (1/2 if it is a secondary attack).