Cardfight!! Vanguard - 4x27 - Season 4, Episode 27- Followmy.tv

Despite some of Gaillard's rear-guards being Omega Locked, he mounts a counterattack on Serra, who then declares "Final Turn". After locking another of Gaillard's rear-guards, Serra launches five attacks on him, but Gaillard manages to defend himself, thus thwarting Serra's "Final Turn". Having learned from Kai the importance of having mates, Gaillard defeats Serra on the next turn and then inflicts Judgment on him. Though it seemed over, Serra quickly recovers and uses his powers to create walls of ice, blocking everyone while he makes his way to Aichi. However, Rati and Neve use their powers to break the ice and stop Serra in his tracks. It is then that Gaillard points out that the brooch Serra wears, which serves as proof of his position as a Quatre Knight, has broken. With Serra no longer being a Quatre Knight, he is forced out of the sanctuary and vanishes. Soon after, Gaillard sets his sight towards Kai...