Ben 10 Season 4 Episode 2 Divided We Stand ( Air Date 2007-07-14 ) Genre Animation, Sci-Fi & Fantasy, Action & Adventure, Comedy, Kids category. Overview "Ben gains another Omnitrix hero to use, which he calls Ditto. Gwen can't stand being around the multiplying Dittos, and they end up giving her headaches. The Dittos, though, prove to be real helpful against Dr. Animo and his multiplying Stinkflies after he extracted some of Ditto's DNA.".