37화: Leon은 전략적인 카드 플레이와 결정적인 트리거를 통해 Kai를 꺾고 승리를 거두었다.

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Kai and Leon continue their cardfight with each side using their respective vanguards' Limit Break abilities. After he insults Leon by calling him a pawn to Void, Kai Crossrides his new trump card: Dragonic Kaiser Vermillion "THE BLOOD". He activates its Ultimate Break to give it extra critical value and power, forcing Leon to use his few remaining cards to defend. Kai manages to deal 2 more points of damage, presumably ensuring his victory, but Leon gets a heal trigger to stay in the game. On the following turn, Leon also Crossrides his new ace card: Blue Storm Supreme Dragon, Glory Maelstrom. Its Ultimate Break also makes Kai use the last of his cards to hopefully block its attack. However, Leon drive checks a critical trigger, thus plowing through Kai's guardians and winning the match. After Glory Maelstrom's attack, the dust settles and reveals Leon standing over the fallen Kai. Just arriving to the scene, Aichi runs towards Kai and picks him up. Weakened, Kai apologizes to Aichi for not being there with him throughout the entire journey and then tells him to continue down his path for both of their sakes. New AL4 is transported back to Earth due to Kai's loss, so now it is up to Aichi to defeat Leon. (Source: Wikipedia)