Yu-Gi-Oh! GX S01 E91 Don't Fear the Reaper

The rumor about a duelist who participates in Genex and beats an opponent by one turn kill is spread out. The true identity of that person who makes a deal with The Grim Reaper's card is Lucien Grimly obtaining draw power. Jaden has to duel against Lucien whose soul has already been sold to The Grim Reaper.