She was being trained to replace Lady Shiva. He was trained by the League of Assassins. Aside from the years of therapy they have ahead of them, Sin and Damian are some mighty impressive minors. While we do not condone hand-to-hand combat among children, you have to admit that a spat between these two would be interesting — and tough to call. Sin is younger, but after seeing her bring down a bunch of hired killers who invaded her school in the Black Canary miniseries, I wouldn’t underestimate her. On the other hand, Damian is … well, Damian. Meet me at the arcade — it’s goin’ down!