Mutilate:
Quote:
Instantly attacks with both weapons for an additional 101 with each weapon. Damage is increased by 50% against Poisoned targets. Must be behind the target. Awards 2 combo points.
Off Hand Dagger
89 - 166 Damage Speed 1.40
(91.1 damage per second)
One-Hand Dagger
131 - 197 Damage Speed 1.80
(91.1 damage per second)
That should make it more obvious