This weapon is designed to sacrifice accuracy for increased damage and terrible injuries. This weapon takes a -2 to attack and has +2 to damage. This penalty and bonus stacks with the Power Attack feat.
A powerful weapon that should perhaps be exotic. However, as a sword designed very closely to a normal longsword, training with one weapon should carry over to the other.
Use as a brutal if inaccurate weapon. Less useful at lower levels, when your attack bonus is lower and it’s harder to hit. Remember that all that nice damage you have stacked up won’t do any good if you can’t hit your targets!