Warren Ellis says: "from 1939, probably the 100th Mandrake knock-off in comics. I use this one because I found his list of villains utterly surreal, worthy of Steve Aylett at times:
John Cardy also known as Kardak the Mystic traveled the world fighting crime using his magic powers. He fought villains such as the Mocha Men, the Brahmins, the Great Rexa, the Transparent People, the Beast-Men, the Ice People, and Kid Boppo.
I do not add a picture because, well, there's really nothing there, so you may as well imagine it for yourself...