Original sentence: He is a master of a half dozen martial arts disciplines and was rigorously trained by the Dark Knight in everything from escapology to criminology, fencing, stealth, disguise, and numerous other combat/non-combat disciplines.His detective and martial arts skills rival those of Batman's, making him one of the greatest crime fighters alive
Edited sentence: He is a master of a half dozen martial arts disciplines and was rigorously trained by his mentor in everything from escapology to criminology, fencing, stealth, disguise, and numerous other combat/non-combat disciplines.His detective and martial arts skills rival those of Bruce Wayne's, making him one of the greatest crime fighters alive