Schwarian is a Strange Demon Robot from the Crisis Empire, seeing himself as the ultimate machine in his branch. He originally turned down Apollo Geist's offer to join Dai-Shocker until he sees his power first hand. He is destroyed by Decade Complete Form with the aid of Agito Shining Form.
Super Hero Taisen Z
He revived again as a part of Space Shocker
Heisei Rider vs. Showa Rider: Kamen Rider Taisen feat. Super Sentai
to be added