Episode 79

"The Awakened Magical Swordsman" (覚醒する魔導剣士  Kakusei-suru Madō Kenshi) is the seventy-ninth episode of the Yu-Gi-Oh! ARC-V anime.

Synopsis
Trusting in Sora's message that Yuzu is fine, Yūya puts in all his thoughts and draws his card. The card he drew is the one that Sam gave to him, the card that mustn't be used, "Tuning Magician". While everyone is believing that is a miss, Yūya trusts in the card that he drew and Synchro Summons!!