Yu-Gi-Oh! GX Episode 21 English Dubbed Episode Title:he Duel Off (Part 1).Episode Description:It has been announced that an interschool duel-off will be taking place, with a student from central Duel Academy facing a student from North Academy. Crowler, Chancellor Sheppard and the other teachers argue over who the school's representative should be - Jaden or Bastion. They decide to have a match between the two and the winner will duel North Academy's representative. Bastion immediately gets to work creating a deck to beat Jaden's Elemental Heroes. The next day, the duel begins. Bastion's strategy seems perfect - he blocks the use of Jaden's Polymerization, rendering his best monsters useless.