As Shark prepares to face Quattro, he is forced to duel Trey instead, whilst Quattro leaves with a completed Heart Pass. As Tori and Bronk take Caswell to the hospital, Yuma and Astral stay to observe Shark's duel. Trey activates a water field. Shark brings out Black Ray Lancer whilst Trey summons Number 32: Shark Drake which deals massive damage to him. As Shark takes control of Shark Drake, he is almost possessed by the Number's power, but overcomes it due to remembering Yuma's words. Trey then summons his ace monster, Chronomaly Crystal Chrononaut, but Shark sees through Trey's traps and wins the duel. It turned out that Vetrix wanted Shark to win to get a hold of Shark Drake, and that there was a seed of darkness implanted in his soul.