One of the biggest holes in the current Injustice 2 cast is that there is no Dick Grayson. While Nightwing is one the most popular characters in DC comics and a fan favorite in the first Injustice game, he is unplayable in the sequel. The only way to play as the sidekick turned superhero is to get a bunch of very specific gear for Damian Wayne’s Robin. The assumed reason for this is that Dick is dead in the Injustice 2 universe but this is a comic book story after all and dead never means dead in comic books.
In the prequel comics set in the Injustice 2 universe Dick Grayson eventually became the ghostly superhero of Deadman. Adding Deadman to the game wouldn’t only give players a chance to play as Dick Grayson, it would add an incredibly different fighting style as well. One of Deadman’s primary powers is to invade the bodies of others and actually have them fight themselves. While this is probably more of a ultimate or special move than a regular combo it could set up some interesting dynamics in fights. It’s true that Gorilla Grodd already has a similar move but Deadman’s possession is unique. At the very least Injustice 2 could finally answer the question of how someone can punch a ghost.