Brett dove for the wand. He grabbed it rolled away from Matt, and wished with all his heart that he was big. Not just the same size he'd been, but 6 feet of muscular muscle, and perhaps a few years older. He didn't say his wish, he visualized the way he wanted to look, and instantly he expanded on the workbench. Various tools and objects impacted and pressed against his swelling body as he grew.
He sat up on the work bench marveling at his muscular arms, chest and legs. He actually had a six pack of abs. He felt something wriggle between his butt cheeks. He frowned, as he remembered Matt. Still holding the wand, he shifted his weight, and pulled the squirming foot long neighbor from beneath his buttocks. Matt was crying and his right arm and leg hung oddly from his body. In spite of what Matt had done, Brett felt compassion. He pointed the wand at the broken little man, and then borrowing a line from the Six Million Dollar Man reruns, he said, "We have the technology, we can rebuild him... Make him stronger, faster, better than he was before..."
Matt felt a wave of relief, as the pain vanished from his body. His crushed limbs were restored, but no something else was happening.
Brett smiled, this magic stuff came naturally to him. His little captive looked confused, so Brett volunteered an explanation.
"Matt, you wanted to play with action figures, so I wished you were a real live one. Made of indestructable plastic, better than you were before, able to survive what I have in store for you, oh and unable to wish for the wand. Hahahhahahahaha!"
Matt was horrified. He felt himself getting denser--solid in fact. But he could still move. He looked at the wand, and tried to remember that he needed it, but deep inside he knew he was Brett's toy and always would be, so he didn't need the wand.