#1. Brock Lesnar
Sportskeeda fans who are used to my work would probably know that I like to toss in a wildcard or two when I am fantasy booking, and The Beast probably ticks that box in this case.
Rey Mysterio has been portrayed throughout his entire WWE career as an underdog, even being dubbed the official "ultimate underdog" in the company. The Mexican Superstar has faced numerous super heavyweights during his pro wrestling career, including names such as Mark Henry, The Great Khali, Big Show, and more.
WWE loves to book David vs Goliath matches, and Rey Mysterio is perhaps the superstar most familiar with this style of competition in the company. Historically, fans have enjoyed watching Rey Mysterio battle against seemingly impossible odds, but one common fan complaint has been Mysterio's limited in-ring capability against super heavyweights.
Enter The Beast. Brock Lesnar's tremendous in-ring ability could lend itself to a better-than-expected in-ring match against Rey Mysterio, and should the former Universal Champion best Mysterio at WrestleMania, it could be an ideal retirement bout and career bookend to the greatest "David" WWE has ever seen.