ithiliel

We are new to the game and are doing our best to understand the proper order to resolve things. During a game yesterday the following scenario occured. An Ashigaru and a Young Nephilim are base to base. The Ashigaru attacks the Nephilim and succeeds with the trigger Wall of Steel. Wall of Steel reads (roughly): After succeeding, push the target 3" away. The Nephilim's ability Black Blood is that models within 1" of the Nephilim takes 1 damage whenever the Nephilim takes damage. Main question: Does the Ashigaru take damage from black blood or does the push happen first? Follow-up question: If the push happens first, does the Nephilim take damage even tough he now is outside of the Ashgaru's range (2").