The idea, at the time, was that we could create some extra layered complexity by having cards that could take advantage of the fact that most creatures have two creature types on them
Of course, card values change all the time, and with new sets emerging for the Pokemon TCG at a steady (some may say relentless!) rate, you can bet that this list will continue to evolve, just like the Pokemon it contains!
Card Set(s) -EMPERORS IN THE NEW WORLD- [OP-09] CARD VIEW OP09-079 | C | EVENT Gum-Gum Jump Rope Block icon 3 Type The Four Emperors/Straw Hat Crew Effect [Main] DON
Ninetales Interestingly for a Fire-type Pokemon card, Ninetales gives themselves and their allies significantly lower retreat costs by simply being on the field
I think flavor-wise this should have included a consistent way to airbend, and the best options still take some work in The Legend of Yangchen / Avatar Yangchen, Monk Gyatso and Appa, Loyal Sky Bison
Before you know it, you could easily sacrifice a creature and exile any nonland permanent you like