"I want you to try," he challenged, taking his time in the space that Tony gives him to find his balance again and get into a steady posture. There's something damn special about the sword, he knows that much, but at this point he's not going to look a gift horse in the mouth. The sword doesn't break. That's good.

He can live with not knowing why.

As he blocks, this time, the sound of metal on metal rings out and he slides back a little way across the grass. He shoves forwards, aiming to push the kid off-balance and gain some ground.