Suggested by Sonic Steel Massimo may not be as fast as the other X characters but he can deal massive damage. One direct hit would likely take Demogoblin down for the count. Demogoblin will need to stay from long distance and throw his pumpkin bombs but due to Massimo’s high durability it will take a long time for those to do much. In the end Massimo will definitely get his hit eventually thanks to all of his energy blasts. Once they connect that’s when it will be game over for the goblin. Steel Massimo wins.