This weapon is used in the off-hand as a means to disarm an opponent - you hold it as you would a shield, not another weapon, and so do not suffer penalties for fighting with two weapons. When using a triple dagger, you get a +3 bonus on your opposed attack roll when attempting to disarm an opponent (including the roll to keep from being disarmed if you fail to disarm your opponent). The triple dagger could also be used as a normal dagger, if desired, but if used in the off-hand, all normal penalties for fighting with two weapons apply.