As you know from the others this is for season 4 to keep down on threads.
Armed Dragon VS Dragoon D End
Episode 166 Airing Date: 12/19/2007
Manjoume's mistake causes Edo to retire from the Pro League and go missing. Meanwhile, Manjoume has been discovered by Mike, a TV Director, and tried his hand at the seat of a Star Duelist. Mike's next gimmick is "Teacher-Pupil Clash! Edo VS Manjoume!!". However, there's a certain secret lying behind Edo's Pro retirement. Lastly, Manjoume and Edo's duel finally gets underway.
Gratitude Duel! Chronos VS The Original Dropout Boy
Episode 167 Airing Date: 12/26/2007
Judai and the other's Graduation Album is complete! When Chronos looks at it, he begins to act abnormal. He conducts rigid cl@sses for no reason, suddenly make his students dictate multiplication tables and kanji, and make them do push-ups...In the end, they end up boycotting the lessons and fleeing...Judai then challenges Chronos to a duel. Judai and Chronos's confrontation is the first since the entrance exams. The two summon the same monsters as back then.