Yu-Gi-Oh! GX Episode 172: Duel Academia Crisis! The Gem Beast Blocking the way
Episode 172 of 180 of Yu-Gi-Oh! GX, aired January 30, 2008, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Jaden has finished his match with Sartorius and headed towards the Academy, but this time, Trueman blocks his path, which leads to a duel. Trueman started the battle using a Crystal Beast deck, one that only Jesse should possess. Jaden gets shocked, realizing that Jesse has fallen into Trueman's clutches.