Fan Casting Solomon Grundy/Cyrus Gold in Batman 2: City Of Owls

Essentially would be a henchman for Cyrus Pinkney and the Court. Would get in an explosion deep beneath Slaughter Swamp where Batman would destroy a Lazarus pit, however Cyrus is somehow caught in the residue of the exploding lazarus pit chemicals and essentially becomes immortal and a Gotham City legend until such a time Batman searches for him.