From Tokumei Sentai Go-Busters Returns vs. Dōbutsu Sentai Go-Busters.

Great Demon-Lord Azazel: 大魔王アザゼル

His origins unknown, Azazel came to Earth on New Years Eve 2012 to destroy the world. Despite Cheeda Nick's attempts to avert it, Azazel slaughtered the Go-Busters in both continuities. However, it was only when the Tokumei Sentai Go-Busters and the Dobutsu Sentai Go-Busters are gathered that Azazel is finally destroyed. He uses a three-eyed scythe as his weapon.