The best piece of evidence that reveals the lose-lose reality of the king's arena is:
"This vast amphitheater...in which crime was punished, or virtue rewarded, by the decrees of an impartial and incorruptible chance." (Paragraph 3)
This quote highlights the arbitrary nature of the outcomes in the arena, emphasizing that both crime and virtue are subjected to chance, illustrating the lack of control and certainty for the accused, which underscores the lose-lose situation.