Jashin 14

Rouze Boss Jashin 14 (邪神１４) is a monstrous entity, sealed in a Stone Relief, whose power is reserved for whoever wins the Battle Fight. However, it requires the life of a human who came near the slab that houses it. Amane was targeted by the Albino Joker as a sacrifice in place of her father who evoked it prior to his death. Once fully awaken, it was used by Albino Joker to fight the Kamen Riders until Hajime sacrificed himself to weaken it for the Blade King Form to destroy with Royal Straight Flush.