Titus

History
Ace has been reintroduced in the Batman books, as a German Shepard/Great Dane mix bought by Bruce Wayne for his son Damian. Ace has appeared in every issue of Batman and Robin. It has yet to be seen if he will become "Bat-Hound", but Bruce has implied he puts police dogs to shame. Recently it has been named Titus, but Ace is used as an affectionate nickname.