Suggested by Destroyer Broly is way too fast and strong for Shadow to handle. Shadow has his Super Shadow form and has always made for an intense rival to Sonic, but Broly has taken on multiple Super Saiyans in the past. He has speed as well as power to back him up. It makes him a better all around fighter in the end. While Shadow can dodge the planets that will blow up in the process, he will eventually be tagged and taken down for the count. Broly wins.