the answer was the incredible hulk
I suppose it could be Iron Man 2... but, imo, hulk is symbolized more (mitosis, green mutate thingy..)
Fourth deck:
6u3 6u3 6u3 6u3 6u3 6u3 6ve 6ve 6ve 6ve 6ve 6ve 77l 77l 77l 77l 7js 7js 7js 7js 7js 7q5 7q5 7q5 7q9 7q9 7q9 7tg 7tg 80b
Tip: unlike previous decks, the riddle is not in what cards are in here, but rather how many (the movie is fairly recent)
12 Rounds (12 cards in there that can are part of how to kill your opponent