Somebody in another thread suggested Lobo, and now I can't stop thinking about how much I would like that. I am not a DC expert by any means but does Deathstroke fit in as well as Joker? I know he's mercenary and killing people is his job so of course he can work but I feel like IF Joker was in MK they could really express him in a way Injustice never could by really embracing that M rating lol