User blog comment:Thailog/Ep. 201 "Happy New Year!" discussion/@comment-24.6.42.116-20120429023004/@comment-108.92.113.254-20120429143854

Beast boy got his powers from a blood transfusion from Miss Martian, but if you go to the DC Wiki and look up somthing called the Metagene, you might get a clearer answer on how many of DC's heros got their powers from random events.