Graduation Match: Part 2 - S1-E52
Plot hole: When Zane has Cyber End Dragon attack Rampart Blaster, Jaden activates De-Fusion, allowing Rampart Blaster to be sent back to his deck (and allowing Burstinatrix and Clayman to come back to the field). Later, when Jaden summons Shining Flare Wingman, he states that it will gain 300 points for each Elemental Hero in his graveyard. We are then shown eight Elemental Heroes in his graveyard, including Rampart Blaster, but this card was never sent to the graveyard, it was sent back to his deck. (00:09:13 - 00:14:43)