No Game No Life Season 1 Episode 12

Rule Number 10

Sora and Shiro are driven into a corner by Izuna's activated Blood Destruction, but just when Izuna thinks she's won the game, she falls into yet another of their traps and is defeated. Some time later, the siblings are summoned by the leader of the Werebeasts, the Shrine Priestess, who wants a rematch against them for the sake of her people, but the challenge "unexpectedly" ends in a draw. She is convinced into joining forces and establishing the Elkia Federation by merging the Imanity and Werebeast territories into a single nation. While making preparations for their next battles, Sora and Shiro renew their conviction to unite all the races of Disboard under their rule, and one day challenge Tet for his title of "One True God".