At the End of the Battle - S1.E50

Kai rides King of Knights, Alfred to give Aichi some damage. However, on the next turn, Aichi declares "Final Turn", attacking with Phantom Blaster Dragon and Blaster Dark attacks but Kai successfully guards against both of them. Failing his Final Turn, Aichi is shocked and forced to end his turn, giving Kai the chance to show Aichi what true strength is. Kai declares "Final Turn" as he rides Alfred Early, a more powerful form of King of Knights, Alfred. Through Alfred Early's skill, Blaster Blade is Superior Called from the soul. Blaster Blade makes Aichi realize that relying on PSY Qualia isn't real power and how Aichi always wanted to have a Cardfight with Kai. The fight is called off, and Kai gives back Aichi's Royal Paladin deck.