Okay... All of the Avatar characters race. (by way of dashmarks)
You cannot go twice in a row.
You can only add five dashes.
You can only add two dashes at the most to a person.

Aang
Katara
Sokka
Toph
Uncle Iroh
Ty Lee
Azula
Zuko
Fire Lord Ozai
Mai
Haru
Appa
Momo
Suki
Moon Princess
Jet
Commander Zhao
Jin