I'm not a big fan of the feat power attack.
The feat is supposed to increase your damage output in exchange for accuracy. The problem is, reduced accuracy reduces your damage output. I think the trade off should be something else. So...
Power Attack
Prerequisite: Str 15
Benefit: You can draw on your strength and inner reserves of power to recklessly attack your foes with extra might. You gain use power attack as an at-will power.
Power Attack
Feat Power
You attack your enemies with extra force, leaving yourself open to attack.
At-Will ✦ Stance
Minor Action
Personal
Effect While you are in this stance, you gain a +2 bonus to melee damage rolls (or a +3 bonus to the damage roll with a two-handed weapon). This extra damage increases by level, as shown on the table below. In addition, you take a –2 penalty to AC and Reflex defenses. This penalty does not increase at higher levels.
Special: When you exit this stance, you continue to take the penalty to AC and Reflex defense until the beginning of your next turn.
The feat is supposed to increase your damage output in exchange for accuracy. The problem is, reduced accuracy reduces your damage output. I think the trade off should be something else. So...
Power Attack
Prerequisite: Str 15
Benefit: You can draw on your strength and inner reserves of power to recklessly attack your foes with extra might. You gain use power attack as an at-will power.
Power Attack
Feat Power
You attack your enemies with extra force, leaving yourself open to attack.
At-Will ✦ Stance
Minor Action
Personal
Effect While you are in this stance, you gain a +2 bonus to melee damage rolls (or a +3 bonus to the damage roll with a two-handed weapon). This extra damage increases by level, as shown on the table below. In addition, you take a –2 penalty to AC and Reflex defenses. This penalty does not increase at higher levels.
Special: When you exit this stance, you continue to take the penalty to AC and Reflex defense until the beginning of your next turn.
Code:
[b]Level Damage Bonus(Two Handed)[/b]
1st-10th +2(+3)
11th-20th +4(+6)
21st-30th +6(+9)