YMMV / DC Graphic Novels for Young Adults

• Complete Monster:
  • Harley Quinn: Breaking Glass, by Mariko Tamaki & Steve Pugh: John Kane, aka the Joker, is a respected son of Mr. and Mrs. Kane, owners of Kane Enterprises. Growing bored with Gotham, John Kane starts committing various acts of vandalism, setting buildings on fire and breaking cars. Deciding to manipulate Harley Quinn, John has her join his cause and tricks her into helping him to break into Kane Enterprise's headquarters, then having her help him carry bombs to the roof and orders his henchmen to hold her, as he reveals that he plans to blow up a gigantic sign of the building right on top of dozens of protesters below, planning to frame Harley for said crime. When Harley beats up his thugs, John escapes, while setting the bombs to explode, also revealing that he rigged to explode the garden at a school, which belongs to Harley's best friend, Ivy Du-Barry.
  • Shadow of the Batgirl: David Cain is the "assassin kingpin" out to control every assassin in the world, and the brutal father of Cassandra Cain. Training Cassandra to only understand body language rather than teaching her to read or talk, Cain used her to commit countless murders, severely traumatizing her until she eventually runs away. Cain, in search of his lost weapon, orchestrates a massive crime wave in Gotham, only to later submit his own life to Cassandra when she inevitably defeats him so she can take over his organization, viewing her only as the perfect creation to carry on his legacy of bloodshed.
  • The Oracle Code: Dr. Neil Lachlan, a physical therapist at the Arkham Center for Independence, is one of the co-masterminds behind the facility's disappearances. Alongside Dr. Maxwell, Lachlan kidnaps young children to subject to genetic experiments, hoping to "fix" their disabilities while remaining apathetic to the numerous deaths his unethical methods cause. Dismissing his subjects as "broken" casualties no one will remember, Lachlan contrasts his partner's genuinely well-intentioned goals with an egotistical desire to change the world, cruelly attempting to eliminate his remaining subjects when discovered and even moving to kill Maxwell when he protests the barbaric act.
• Realism-Induced Horror: Mr. Mxyzptlk in Harvests of Youth, rather than being a reality-warping being, is merely a guy in online chat rooms radicalizing disaffected teenaged boys into reactionaries committing crimes from acts of vandalism up to domestic terrorism. His grooming of their worst feelings is so strong that, when these impressionable minds who feel the world is against them think they've been rejected even by him, they'll commit suicide from despair. Keep in mind every version of Mxy is canonically the same one popping into different timelines so, for whatever reason, he's decided to act this way in this reality for fun.