Kaijudo: Clash of the Duel Masters (2012)

S01E17 A Light in the Darkness

Gabe's twin brothers convince him to join them on an adventure to an old, deserted amusement park. Just as they start their exploration, Fingers unleashes a new Darkness creature to pursue them. In the midst of the chaos, Gabe unexpectedly teams up with Sasha, a princess from the Light Civilization, who becomes not only his ally in the fight but also a new friend.