Changes

Shark immediately declares an attack with "Shark Drake". Yuma says its Shark's win and Trey tells them not yet. He activates the effect of the "Colossal Head" in his Graveyard, banishing it to change "Crystal Chrononaut" to Defense Position. "Crystal Chrononaut" is destroyed. Yuma says that's not good - no damage was inflicted. Astral tells him no and Shark activates the effect of "Shark Drake", detaching an Overlay Unit to Special Summon "Crystal Chrononaut" back to Trey's field with 1100 ATK. Shark asks if Trey thought he would forget the effect of "Shark Drake". Shark attacks with "Shark Drake" again and Trey tells him that fortunately, he hasn't underestimated Shark at all. He says he knew Shark would be able to control the "Number" and activates his face-down "[[Chronomaly Ley Line Power]]", switching the ATK of the battling monsters. Trey says he wins and Shark smirks, saying he expected that. He claims he's the fortunate one - he didn't' underestimate Trey either. Shark says he knew that Trey would expect him to use the effect of "Shark Drake". He activates his face-down "[[Sea King's Verdict]]", negating "Chronomaly Ley Line Power" as it was activated during the [[Battle Phase]]. Trey asks how that could be and curses. Shark tells "Shark Drake" to resume its attack. "Crystal Chrononaut" is destroyed and Trey's Life Points fall to zero. The Field Spell fades and Yuma is happy that Shark won. Astral calls the Duel a breathtaking display of offense and defense. Trey says he understands that Shark is quite good and that he lost - for today, at least. He tosses Shark a Heart Piece and holds up a full container of his own. He says it won't be easy for Shark if they meet again in the finals. Yuma is surprised Trey has already qualified too. Trey tells Shark to keep the "Number" and consider it a reward for winning the Duel. Trey's crest glows and he vanishes in a green light. Yuma's D-Gazer rings and he answers. Its Tori, who tells him they're at the hospital now and Caswell is holding up fine. Yuma says he'll be right over and then hears the engine of Shark's motorcycle roar. Shark tells Yuma not to get involved with him anymore and rides off. Yuma is worried about Shark Dueling for revenge. Astral observes that Yuma and Shark will Duel again eventually, since Shark has another "Number" now.

At Vetrix's headquarters, Trey approaches Vetrix, who tells him he did a good job. He complements him, saying he always completes the tasks Vetrix assigns. Trey says he just does everything he can for Vetrix and Vetrix comments that modesty is one of Trey's virtues as well. Trey informs him that Shark wasn't possessed by the "Number". Vetrix says that's not the case - the darkness that sleeps in a person's heart can come out as long as there is even the tiniest opening. It will slowly expand with their realization.