Batman / Superman: World’s Finest — DC Comics
Issue: #9 B
Batman and Superman are on a quest to train the mysterious new hero Boy Thunder... but what’s that in the dark? A faint noise...sounds like a laugh? Uh-oh. The Joker is here and he’s got his own plans for a super-powered sidekick! Someone hide all the crowbars, quick!
Creators: Mark Waid, Paolo Manuel Rivera, Steve Wands, Afua Richardson, Tamra Bonvillain, Steve Beach, Dan Mora, Mario Foccillo
Characters: Dick Grayson, Batman, Joker, Superman, Tempest, Roy Harper, Donna Troy, The Key, Barry Allen, Ratcatcher, Wally West, Boy Thunder