Just as the group left for the arena, Shadow attached herself to the man, with the intent to follow him wherever he went. She doubted that he could see Duel Monsters, thus had no problem appearing behind him, every once in a while. What nefarious purpose did he have, to not play fair? Mokuba was willing to make up for his mistake - only for the man's understanding to be lacking. Whatever it is that she needed to know, Shadow placed that suggestion into his head. 

[i]"What are you playing at, lower?"[/i], she whispered in his ear. [i]"Tell me what I need to know, before your grand performance. Be scared, if you wish. There is no resisting"[/i], the genie devilishly said; her red eyes, glowing. [i]"What lesson do you plan to teach them?"[/i]