Judomaster is the name of several superheroes appearing in American comic books published by DC Comics.
Rip as Judomaster. Cover of Special War Series #4 (November 1965), art by Frank McLaughlin.
Judomaster as seen in the interior artwork for Justice League Quarterly #14 (March 1994). Art by Mike Collins.
Judomaster #98, artist Frank McLaughlin.
Nightshade is a superhero appearing in media published by DC Comics. Created by David Kaler and Steve Ditko, the character first appeared in Captain Atom #82 originally published by Charlton Comics.
Nightshade in Deathstroke #33.