TITLE:"Shark's Counterattack!" is the tenth episode of the Yu-Gi-Oh! ZEXAL anime. It first aired in Japan on on June 13, 2011.
DESCRIPTION:Yuma is reminded that his victories in his current Duels are due to Astral's help. To prove his skills, he fights Shark once more. Though Shark doesn't care to Duel again, he finally agrees when he finally reaches the end of his rope due to Yuma's constant following him around. The Duel of these two begins. Can Yuma win against Shark, who has no "Number" cards, when he himself declares he won't use his "Number" cards or require the aid of Astral!?