With all this talk about "the animation shows thrusts with both hands", I went and took a closer look, from multiple angles, including top-down. When you stab someone and it hits, this is what happens:
The left hand comes up and shoves the target, then the right hand comes across to the left side and stabs the target, then the right hand thrusts into the right side.
So at least one of the animations, when you look at it, actually does show the attacker only using the right hand dagger to stab. There might be a second animation, I'll have to check more carefully.
Last edited by Stabbey; 27/06/14 01:37 PM. Reason: second animation?