While I don't know what Grass Wonder was representing as, Hishi Amazon and El Condor Pasa are representing Amazoness and Harpie, respectively, and are Mai's decks of choice in anime.
While I don't know what Grass Wonder was representing as, Hishi Amazon and El Condor Pasa are representing Amazoness and Harpie, respectively, and are Mai's decks of choice in anime.
My tough guess is Marik's trump card, the Winged-Dragon of Ra... But then again I really forgot this match since it is really long time ago.