Bujin

Bujin appeared in 1988 TV series called Kamen Rider Black RX. Bujin is a silver armored swordsman with ability to harness the sun's rays and use them as a weapon. He could also move through anything reflective. His mission was to steal something from Yousuke Morita, an old friend of Kohtaro's. After a brief fight with Bujin, Kohtaro learns the blueprints are for a laser the Crisis Empire wants to build. To get the blueprints from Kohtaro, Bujin uses Yousuke as a hostage and tricks Kohtaro into giving him the blueprints, which Kohtaro then reveals are fake. From there, RX battles Bujin until he used his Revolcane to destroy him.