In the battle against Ozai , Sokka , his girlfriend Suki , and Toph destroyed a Fire Nation airship and use it to destroy others of its kind while Aang duels with the Phoenix King ( Ozai ) . In the battle against Ozai , Sokka with Suki and Toph hijack a fire nation airship and use it to run into many of the other airships ( similar to dominoes ) while Aang duels with the Phoenix King ( Ozai ) .