[quote=Skallagrim]
Like a real fight everything happens simultaneously. This is not a chess board where everyone takes turns. However Melon can you please clarify the attack for me, I have some positional issue with your attack. The attack is well thought out but I need to see the position you are at when you make the slash. Are you on the right or left of the boulder?
[/quote]

My character scuttled forward towards her, taking advantage of the side step (which I assumed was to the left, away from the boulder, as it wasn't obviously stated.) he ran past her right side, slashing across with his stolen sword as he did so, but he came at an angle so he could carry his momentum to the archer further to his left and stab him as well.

The boulder may have intruded upon my post more than I stated, though if required I can revise my post to state my character just climbed over it, which would be incredibly easy for him.

As for when he chose to attack, a gigantic character preparing to step past his thrown projectile is somewhat obvious, he watched for the movement and continued his attack before she had even made the step, considering his speed and the distance that would be more than plausible. There is nothing stopping you from having a moment to react after finishing your side-step, though I don't remember super-human reflexes being one of your character traits.